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Finding the Fourth Proportional to 636,714.55, 954,743.16 and 187,377.07

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Solution

The fourth proportional to 636,714.55, 954,743.16 and 187,377.07 is: 280,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,714.55 : 954,743.16 = 187,377.07 : x
  2. Step 2: Convert to fraction form
    636,714.55/954,743.16 = 187,377.07/x
  3. Step 3: Cross multiply
    636,714.55x = 954,743.16 × 187,377.07
  4. Step 4: Simplify right side
    636,714.55x = 178,896,975,923.34
  5. Step 5: Solve for x
    x = 178,896,975,923.34/636,714.55
  6. Step 6: Final answer
    x = 280,968.89

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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.