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Finding the Fourth Proportional to 375,176.40, 517,732.20 and 205,404.72

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Solution

The fourth proportional to 375,176.40, 517,732.20 and 205,404.72 is: 283,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,176.40 : 517,732.20 = 205,404.72 : x
  2. Step 2: Convert to fraction form
    375,176.40/517,732.20 = 205,404.72/x
  3. Step 3: Cross multiply
    375,176.40x = 517,732.20 × 205,404.72
  4. Step 4: Simplify right side
    375,176.40x = 106,344,637,575.98
  5. Step 5: Solve for x
    x = 106,344,637,575.98/375,176.40
  6. Step 6: Final answer
    x = 283,452.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.