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Finding the Fourth Proportional to 380,545.71, 524,953.98 and 235,305.06

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Solution

The fourth proportional to 380,545.71, 524,953.98 and 235,305.06 is: 324,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,545.71 : 524,953.98 = 235,305.06 : x
  2. Step 2: Convert to fraction form
    380,545.71/524,953.98 = 235,305.06/x
  3. Step 3: Cross multiply
    380,545.71x = 524,953.98 × 235,305.06
  4. Step 4: Simplify right side
    380,545.71x = 123,524,327,761.14
  5. Step 5: Solve for x
    x = 123,524,327,761.14/380,545.71
  6. Step 6: Final answer
    x = 324,597.87

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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.