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Finding the Fourth Proportional to 368,454.52, 552,679.80 and 318,382.32

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Solution

The fourth proportional to 368,454.52, 552,679.80 and 318,382.32 is: 477,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,454.52 : 552,679.80 = 318,382.32 : x
  2. Step 2: Convert to fraction form
    368,454.52/552,679.80 = 318,382.32/x
  3. Step 3: Cross multiply
    368,454.52x = 552,679.80 × 318,382.32
  4. Step 4: Simplify right side
    368,454.52x = 175,963,476,941.14
  5. Step 5: Solve for x
    x = 175,963,476,941.14/368,454.52
  6. Step 6: Final answer
    x = 477,571.77

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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.