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Finding the Fourth Proportional to 368,382.78, 552,572.33 and 318,310.52

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Solution

The fourth proportional to 368,382.78, 552,572.33 and 318,310.52 is: 477,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,382.78 : 552,572.33 = 318,310.52 : x
  2. Step 2: Convert to fraction form
    368,382.78/552,572.33 = 318,310.52/x
  3. Step 3: Cross multiply
    368,382.78x = 552,572.33 × 318,310.52
  4. Step 4: Simplify right side
    368,382.78x = 175,889,581,345.50
  5. Step 5: Solve for x
    x = 175,889,581,345.50/368,382.78
  6. Step 6: Final answer
    x = 477,464.18

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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.