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Finding the Fourth Proportional to 872,780.61, 1,306,370.61 and 466,957.61

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Solution

The fourth proportional to 872,780.61, 1,306,370.61 and 466,957.61 is: 698,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,780.61 : 1,306,370.61 = 466,957.61 : x
  2. Step 2: Convert to fraction form
    872,780.61/1,306,370.61 = 466,957.61/x
  3. Step 3: Cross multiply
    872,780.61x = 1,306,370.61 × 466,957.61
  4. Step 4: Simplify right side
    872,780.61x = 610,019,697,819.84
  5. Step 5: Solve for x
    x = 610,019,697,819.84/872,780.61
  6. Step 6: Final answer
    x = 698,938.19

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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.