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Finding the Fourth Proportional to 670,221.39, 924,275.17 and 517,017.32

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Solution

The fourth proportional to 670,221.39, 924,275.17 and 517,017.32 is: 712,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,221.39 : 924,275.17 = 517,017.32 : x
  2. Step 2: Convert to fraction form
    670,221.39/924,275.17 = 517,017.32/x
  3. Step 3: Cross multiply
    670,221.39x = 924,275.17 × 517,017.32
  4. Step 4: Simplify right side
    670,221.39x = 477,866,271,335.94
  5. Step 5: Solve for x
    x = 477,866,271,335.94/670,221.39
  6. Step 6: Final answer
    x = 712,997.64

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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.