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Finding the Fourth Proportional to 415,435.93, 572,629.98 and 324,634.12

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Solution

The fourth proportional to 415,435.93, 572,629.98 and 324,634.12 is: 447,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,435.93 : 572,629.98 = 324,634.12 : x
  2. Step 2: Convert to fraction form
    415,435.93/572,629.98 = 324,634.12/x
  3. Step 3: Cross multiply
    415,435.93x = 572,629.98 × 324,634.12
  4. Step 4: Simplify right side
    415,435.93x = 185,895,229,642.92
  5. Step 5: Solve for x
    x = 185,895,229,642.92/415,435.93
  6. Step 6: Final answer
    x = 447,470.27

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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.