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Finding the Fourth Proportional to 363,615.40, 545,423.10 and 237,644.20

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Solution

The fourth proportional to 363,615.40, 545,423.10 and 237,644.20 is: 356,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,615.40 : 545,423.10 = 237,644.20 : x
  2. Step 2: Convert to fraction form
    363,615.40/545,423.10 = 237,644.20/x
  3. Step 3: Cross multiply
    363,615.40x = 545,423.10 × 237,644.20
  4. Step 4: Simplify right side
    363,615.40x = 129,616,636,261.02
  5. Step 5: Solve for x
    x = 129,616,636,261.02/363,615.40
  6. Step 6: Final answer
    x = 356,466.30

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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.