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Finding the Fourth Proportional to 502,955.20, 754,359.90 and 147,932.20

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Solution

The fourth proportional to 502,955.20, 754,359.90 and 147,932.20 is: 221,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,955.20 : 754,359.90 = 147,932.20 : x
  2. Step 2: Convert to fraction form
    502,955.20/754,359.90 = 147,932.20/x
  3. Step 3: Cross multiply
    502,955.20x = 754,359.90 × 147,932.20
  4. Step 4: Simplify right side
    502,955.20x = 111,594,119,598.78
  5. Step 5: Solve for x
    x = 111,594,119,598.78/502,955.20
  6. Step 6: Final answer
    x = 221,876.86

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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.