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Finding the Fourth Proportional to 586,581.40, 878,559.90 and 481,605.40

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Solution

The fourth proportional to 586,581.40, 878,559.90 and 481,605.40 is: 721,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,581.40 : 878,559.90 = 481,605.40 : x
  2. Step 2: Convert to fraction form
    586,581.40/878,559.90 = 481,605.40/x
  3. Step 3: Cross multiply
    586,581.40x = 878,559.90 × 481,605.40
  4. Step 4: Simplify right side
    586,581.40x = 423,119,192,063.46
  5. Step 5: Solve for x
    x = 423,119,192,063.46/586,581.40
  6. Step 6: Final answer
    x = 721,330.73

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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.