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Finding the Fourth Proportional to 424,562.31, 636,941.88 and 187,907.04

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Solution

The fourth proportional to 424,562.31, 636,941.88 and 187,907.04 is: 281,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,562.31 : 636,941.88 = 187,907.04 : x
  2. Step 2: Convert to fraction form
    424,562.31/636,941.88 = 187,907.04/x
  3. Step 3: Cross multiply
    424,562.31x = 636,941.88 × 187,907.04
  4. Step 4: Simplify right side
    424,562.31x = 119,685,863,322.84
  5. Step 5: Solve for x
    x = 119,685,863,322.84/424,562.31
  6. Step 6: Final answer
    x = 281,904.12

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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.