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Finding the Fourth Proportional to 673,985,458.20, 946,300,619.40 and 673,985,458.20

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Solution

The fourth proportional to 673,985,458.20, 946,300,619.40 and 673,985,458.20 is: 946,300,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,985,458.20 : 946,300,619.40 = 673,985,458.20 : x
  2. Step 2: Convert to fraction form
    673,985,458.20/946,300,619.40 = 673,985,458.20/x
  3. Step 3: Cross multiply
    673,985,458.20x = 946,300,619.40 × 673,985,458.20
  4. Step 4: Simplify right side
    673,985,458.20x = 637,792,856,561,252,864
  5. Step 5: Solve for x
    x = 637,792,856,561,252,864/673,985,458.20
  6. Step 6: Final answer
    x = 946,300,619.40

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Double scale
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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.