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Finding the Fourth Proportional to 607,090.80, 910,636.20 and 292,162.80

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Solution

The fourth proportional to 607,090.80, 910,636.20 and 292,162.80 is: 438,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,090.80 : 910,636.20 = 292,162.80 : x
  2. Step 2: Convert to fraction form
    607,090.80/910,636.20 = 292,162.80/x
  3. Step 3: Cross multiply
    607,090.80x = 910,636.20 × 292,162.80
  4. Step 4: Simplify right side
    607,090.80x = 266,054,021,973.36
  5. Step 5: Solve for x
    x = 266,054,021,973.36/607,090.80
  6. Step 6: Final answer
    x = 438,244.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.