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Finding the Fourth Proportional to 400,326.71, 600,575.72 and 147,607.92

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Solution

The fourth proportional to 400,326.71, 600,575.72 and 147,607.92 is: 221,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,326.71 : 600,575.72 = 147,607.92 : x
  2. Step 2: Convert to fraction form
    400,326.71/600,575.72 = 147,607.92/x
  3. Step 3: Cross multiply
    400,326.71x = 600,575.72 × 147,607.92
  4. Step 4: Simplify right side
    400,326.71x = 88,649,732,093.66
  5. Step 5: Solve for x
    x = 88,649,732,093.66/400,326.71
  6. Step 6: Final answer
    x = 221,443.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.