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Finding the Fourth Proportional to 417,136.16, 575,649.18 and 226,149.71

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Solution

The fourth proportional to 417,136.16, 575,649.18 and 226,149.71 is: 312,087.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,136.16 : 575,649.18 = 226,149.71 : x
  2. Step 2: Convert to fraction form
    417,136.16/575,649.18 = 226,149.71/x
  3. Step 3: Cross multiply
    417,136.16x = 575,649.18 × 226,149.71
  4. Step 4: Simplify right side
    417,136.16x = 130,182,892,240.49
  5. Step 5: Solve for x
    x = 130,182,892,240.49/417,136.16
  6. Step 6: Final answer
    x = 312,087.28

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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.