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Finding the Fourth Proportional to 550,657.95, 760,146.42 and 516,187.18

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Solution

The fourth proportional to 550,657.95, 760,146.42 and 516,187.18 is: 712,561.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,657.95 : 760,146.42 = 516,187.18 : x
  2. Step 2: Convert to fraction form
    550,657.95/760,146.42 = 516,187.18/x
  3. Step 3: Cross multiply
    550,657.95x = 760,146.42 × 516,187.18
  4. Step 4: Simplify right side
    550,657.95x = 392,377,836,926.90
  5. Step 5: Solve for x
    x = 392,377,836,926.90/550,657.95
  6. Step 6: Final answer
    x = 712,561.83

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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.