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Finding the Fourth Proportional to 359,697.60, 539,611.20 and 149,356.80

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Solution

The fourth proportional to 359,697.60, 539,611.20 and 149,356.80 is: 224,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,697.60 : 539,611.20 = 149,356.80 : x
  2. Step 2: Convert to fraction form
    359,697.60/539,611.20 = 149,356.80/x
  3. Step 3: Cross multiply
    359,697.60x = 539,611.20 × 149,356.80
  4. Step 4: Simplify right side
    359,697.60x = 80,594,602,076.16
  5. Step 5: Solve for x
    x = 80,594,602,076.16/359,697.60
  6. Step 6: Final answer
    x = 224,062.11

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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.