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Finding the Fourth Proportional to 543,281.82, 749,691.39 and 301,545.38

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Solution

The fourth proportional to 543,281.82, 749,691.39 and 301,545.38 is: 416,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,281.82 : 749,691.39 = 301,545.38 : x
  2. Step 2: Convert to fraction form
    543,281.82/749,691.39 = 301,545.38/x
  3. Step 3: Cross multiply
    543,281.82x = 749,691.39 × 301,545.38
  4. Step 4: Simplify right side
    543,281.82x = 226,065,971,331.82
  5. Step 5: Solve for x
    x = 226,065,971,331.82/543,281.82
  6. Step 6: Final answer
    x = 416,111.79

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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.