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Finding the Fourth Proportional to 384,337.20, 576,505.80 and 356,343.60

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Solution

The fourth proportional to 384,337.20, 576,505.80 and 356,343.60 is: 534,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,337.20 : 576,505.80 = 356,343.60 : x
  2. Step 2: Convert to fraction form
    384,337.20/576,505.80 = 356,343.60/x
  3. Step 3: Cross multiply
    384,337.20x = 576,505.80 × 356,343.60
  4. Step 4: Simplify right side
    384,337.20x = 205,434,152,192.88
  5. Step 5: Solve for x
    x = 205,434,152,192.88/384,337.20
  6. Step 6: Final answer
    x = 534,515.40

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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.