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Finding the Fourth Proportional to 359,397.80, 539,096.70 and 331,404.20

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Solution

The fourth proportional to 359,397.80, 539,096.70 and 331,404.20 is: 497,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,397.80 : 539,096.70 = 331,404.20 : x
  2. Step 2: Convert to fraction form
    359,397.80/539,096.70 = 331,404.20/x
  3. Step 3: Cross multiply
    359,397.80x = 539,096.70 × 331,404.20
  4. Step 4: Simplify right side
    359,397.80x = 178,658,910,586.14
  5. Step 5: Solve for x
    x = 178,658,910,586.14/359,397.80
  6. Step 6: Final answer
    x = 497,106.30

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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.