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Finding the Fourth Proportional to 710,476.60, 980,892.21 and 462,354.97

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Solution

The fourth proportional to 710,476.60, 980,892.21 and 462,354.97 is: 638,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,476.60 : 980,892.21 = 462,354.97 : x
  2. Step 2: Convert to fraction form
    710,476.60/980,892.21 = 462,354.97/x
  3. Step 3: Cross multiply
    710,476.60x = 980,892.21 × 462,354.97
  4. Step 4: Simplify right side
    710,476.60x = 453,520,389,685.58
  5. Step 5: Solve for x
    x = 453,520,389,685.58/710,476.60
  6. Step 6: Final answer
    x = 638,332.62

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1.5x scale

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.