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Finding the Fourth Proportional to 424,679.44, 637,084.72 and 154,830.32

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Solution

The fourth proportional to 424,679.44, 637,084.72 and 154,830.32 is: 232,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,679.44 : 637,084.72 = 154,830.32 : x
  2. Step 2: Convert to fraction form
    424,679.44/637,084.72 = 154,830.32/x
  3. Step 3: Cross multiply
    424,679.44x = 637,084.72 × 154,830.32
  4. Step 4: Simplify right side
    424,679.44x = 98,640,031,064.71
  5. Step 5: Solve for x
    x = 98,640,031,064.71/424,679.44
  6. Step 6: Final answer
    x = 232,269.38

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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.