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Finding the Fourth Proportional to 385,772.66, 532,243.25 and 249,910.75

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Solution

The fourth proportional to 385,772.66, 532,243.25 and 249,910.75 is: 344,797.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,772.66 : 532,243.25 = 249,910.75 : x
  2. Step 2: Convert to fraction form
    385,772.66/532,243.25 = 249,910.75/x
  3. Step 3: Cross multiply
    385,772.66x = 532,243.25 × 249,910.75
  4. Step 4: Simplify right side
    385,772.66x = 133,013,305,879.17
  5. Step 5: Solve for x
    x = 133,013,305,879.17/385,772.66
  6. Step 6: Final answer
    x = 344,797.13

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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.