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Finding the Fourth Proportional to 586,401.90, 878,566.05 and 520,046.70

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Solution

The fourth proportional to 586,401.90, 878,566.05 and 520,046.70 is: 779,150.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,401.90 : 878,566.05 = 520,046.70 : x
  2. Step 2: Convert to fraction form
    586,401.90/878,566.05 = 520,046.70/x
  3. Step 3: Cross multiply
    586,401.90x = 878,566.05 × 520,046.70
  4. Step 4: Simplify right side
    586,401.90x = 456,895,375,034.54
  5. Step 5: Solve for x
    x = 456,895,375,034.54/586,401.90
  6. Step 6: Final answer
    x = 779,150.57

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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.