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Finding the Fourth Proportional to 673,596,148.80, 940,738,783.20 and 673,596,148.80

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Solution

The fourth proportional to 673,596,148.80, 940,738,783.20 and 673,596,148.80 is: 940,738,783.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,596,148.80 : 940,738,783.20 = 673,596,148.80 : x
  2. Step 2: Convert to fraction form
    673,596,148.80/940,738,783.20 = 673,596,148.80/x
  3. Step 3: Cross multiply
    673,596,148.80x = 940,738,783.20 × 673,596,148.80
  4. Step 4: Simplify right side
    673,596,148.80x = 633,678,021,390,318,080
  5. Step 5: Solve for x
    x = 633,678,021,390,318,080/673,596,148.80
  6. Step 6: Final answer
    x = 940,738,783.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.