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Finding the Fourth Proportional to 435,404.20, 653,106.30 and 324,812.20

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Solution

The fourth proportional to 435,404.20, 653,106.30 and 324,812.20 is: 487,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,404.20 : 653,106.30 = 324,812.20 : x
  2. Step 2: Convert to fraction form
    435,404.20/653,106.30 = 324,812.20/x
  3. Step 3: Cross multiply
    435,404.20x = 653,106.30 × 324,812.20
  4. Step 4: Simplify right side
    435,404.20x = 212,136,894,136.86
  5. Step 5: Solve for x
    x = 212,136,894,136.86/435,404.20
  6. Step 6: Final answer
    x = 487,218.30

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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.