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Finding the Fourth Proportional to 503,030.71, 754,545.25 and 129,053.71

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Solution

The fourth proportional to 503,030.71, 754,545.25 and 129,053.71 is: 193,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,030.71 : 754,545.25 = 129,053.71 : x
  2. Step 2: Convert to fraction form
    503,030.71/754,545.25 = 129,053.71/x
  3. Step 3: Cross multiply
    503,030.71x = 754,545.25 × 129,053.71
  4. Step 4: Simplify right side
    503,030.71x = 97,376,863,875.38
  5. Step 5: Solve for x
    x = 97,376,863,875.38/503,030.71
  6. Step 6: Final answer
    x = 193,580.36

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Similar ratio
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1.5x scale

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.