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Finding the Fourth Proportional to 586,446.90, 878,633.55 and 520,091.70

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Solution

The fourth proportional to 586,446.90, 878,633.55 and 520,091.70 is: 779,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,446.90 : 878,633.55 = 520,091.70 : x
  2. Step 2: Convert to fraction form
    586,446.90/878,633.55 = 520,091.70/x
  3. Step 3: Cross multiply
    586,446.90x = 878,633.55 × 520,091.70
  4. Step 4: Simplify right side
    586,446.90x = 456,970,016,696.54
  5. Step 5: Solve for x
    x = 456,970,016,696.54/586,446.90
  6. Step 6: Final answer
    x = 779,218.06

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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.