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Finding the Fourth Proportional to 413,479.90, 570,691.20 and 252,300.43

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Solution

The fourth proportional to 413,479.90, 570,691.20 and 252,300.43 is: 348,228.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,479.90 : 570,691.20 = 252,300.43 : x
  2. Step 2: Convert to fraction form
    413,479.90/570,691.20 = 252,300.43/x
  3. Step 3: Cross multiply
    413,479.90x = 570,691.20 × 252,300.43
  4. Step 4: Simplify right side
    413,479.90x = 143,985,635,157.22
  5. Step 5: Solve for x
    x = 143,985,635,157.22/413,479.90
  6. Step 6: Final answer
    x = 348,228.86

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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.