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Finding the Fourth Proportional to 423,493.45, 584,164.17 and 251,297.98

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Solution

The fourth proportional to 423,493.45, 584,164.17 and 251,297.98 is: 346,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,493.45 : 584,164.17 = 251,297.98 : x
  2. Step 2: Convert to fraction form
    423,493.45/584,164.17 = 251,297.98/x
  3. Step 3: Cross multiply
    423,493.45x = 584,164.17 × 251,297.98
  4. Step 4: Simplify right side
    423,493.45x = 146,799,275,909.38
  5. Step 5: Solve for x
    x = 146,799,275,909.38/423,493.45
  6. Step 6: Final answer
    x = 346,638.83

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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.