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Finding the Fourth Proportional to 385,665.28, 532,218.09 and 234,762.28

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Solution

The fourth proportional to 385,665.28, 532,218.09 and 234,762.28 is: 323,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,665.28 : 532,218.09 = 234,762.28 : x
  2. Step 2: Convert to fraction form
    385,665.28/532,218.09 = 234,762.28/x
  3. Step 3: Cross multiply
    385,665.28x = 532,218.09 × 234,762.28
  4. Step 4: Simplify right side
    385,665.28x = 124,944,732,265.65
  5. Step 5: Solve for x
    x = 124,944,732,265.65/385,665.28
  6. Step 6: Final answer
    x = 323,971.95

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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.