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Finding the Fourth Proportional to 671,390.40, 924,753.80 and 516,044.62

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Solution

The fourth proportional to 671,390.40, 924,753.80 and 516,044.62 is: 710,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,390.40 : 924,753.80 = 516,044.62 : x
  2. Step 2: Convert to fraction form
    671,390.40/924,753.80 = 516,044.62/x
  3. Step 3: Cross multiply
    671,390.40x = 924,753.80 × 516,044.62
  4. Step 4: Simplify right side
    671,390.40x = 477,214,223,314.56
  5. Step 5: Solve for x
    x = 477,214,223,314.56/671,390.40
  6. Step 6: Final answer
    x = 710,785.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.