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Finding the Fourth Proportional to 913,781, 1,260,842.82 and 591,446.36

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Solution

The fourth proportional to 913,781, 1,260,842.82 and 591,446.36 is: 816,082.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,781 : 1,260,842.82 = 591,446.36 : x
  2. Step 2: Convert to fraction form
    913,781/1,260,842.82 = 591,446.36/x
  3. Step 3: Cross multiply
    913,781x = 1,260,842.82 × 591,446.36
  4. Step 4: Simplify right side
    913,781x = 745,720,896,421.14
  5. Step 5: Solve for x
    x = 745,720,896,421.14/913,781
  6. Step 6: Final answer
    x = 816,082.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.