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Finding the Fourth Proportional to 359,488.71, 539,306.84 and 146,256.06

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Solution

The fourth proportional to 359,488.71, 539,306.84 and 146,256.06 is: 219,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,488.71 : 539,306.84 = 146,256.06 : x
  2. Step 2: Convert to fraction form
    359,488.71/539,306.84 = 146,256.06/x
  3. Step 3: Cross multiply
    359,488.71x = 539,306.84 × 146,256.06
  4. Step 4: Simplify right side
    359,488.71x = 78,876,892,818.17
  5. Step 5: Solve for x
    x = 78,876,892,818.17/359,488.71
  6. Step 6: Final answer
    x = 219,414.10

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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.