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Finding the Fourth Proportional to 432,472.40, 647,153.40 and 292,504.40

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Solution

The fourth proportional to 432,472.40, 647,153.40 and 292,504.40 is: 437,704.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,472.40 : 647,153.40 = 292,504.40 : x
  2. Step 2: Convert to fraction form
    432,472.40/647,153.40 = 292,504.40/x
  3. Step 3: Cross multiply
    432,472.40x = 647,153.40 × 292,504.40
  4. Step 4: Simplify right side
    432,472.40x = 189,295,216,974.96
  5. Step 5: Solve for x
    x = 189,295,216,974.96/432,472.40
  6. Step 6: Final answer
    x = 437,704.73

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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.