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Finding the Fourth Proportional to 385,045.88, 576,442.86 and 224,631.32

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Solution

The fourth proportional to 385,045.88, 576,442.86 and 224,631.32 is: 336,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,045.88 : 576,442.86 = 224,631.32 : x
  2. Step 2: Convert to fraction form
    385,045.88/576,442.86 = 224,631.32/x
  3. Step 3: Cross multiply
    385,045.88x = 576,442.86 × 224,631.32
  4. Step 4: Simplify right side
    385,045.88x = 129,487,120,546.38
  5. Step 5: Solve for x
    x = 129,487,120,546.38/385,045.88
  6. Step 6: Final answer
    x = 336,290.11

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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.