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Finding the Fourth Proportional to 478,054.41, 715,565.30 and 267,052.65

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Solution

The fourth proportional to 478,054.41, 715,565.30 and 267,052.65 is: 399,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,054.41 : 715,565.30 = 267,052.65 : x
  2. Step 2: Convert to fraction form
    478,054.41/715,565.30 = 267,052.65/x
  3. Step 3: Cross multiply
    478,054.41x = 715,565.30 × 267,052.65
  4. Step 4: Simplify right side
    478,054.41x = 191,093,608,277.78
  5. Step 5: Solve for x
    x = 191,093,608,277.78/478,054.41
  6. Step 6: Final answer
    x = 399,731.92

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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.