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Finding the Fourth Proportional to 571,426.60, 859,116.30 and 534,425.80

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Solution

The fourth proportional to 571,426.60, 859,116.30 and 534,425.80 is: 803,487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,426.60 : 859,116.30 = 534,425.80 : x
  2. Step 2: Convert to fraction form
    571,426.60/859,116.30 = 534,425.80/x
  3. Step 3: Cross multiply
    571,426.60x = 859,116.30 × 534,425.80
  4. Step 4: Simplify right side
    571,426.60x = 459,133,915,920.54
  5. Step 5: Solve for x
    x = 459,133,915,920.54/571,426.60
  6. Step 6: Final answer
    x = 803,487.12

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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.