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Finding the Fourth Proportional to 476,063.55, 656,967.60 and 272,118.87

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Solution

The fourth proportional to 476,063.55, 656,967.60 and 272,118.87 is: 375,523.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,063.55 : 656,967.60 = 272,118.87 : x
  2. Step 2: Convert to fraction form
    476,063.55/656,967.60 = 272,118.87/x
  3. Step 3: Cross multiply
    476,063.55x = 656,967.60 × 272,118.87
  4. Step 4: Simplify right side
    476,063.55x = 178,773,280,938.61
  5. Step 5: Solve for x
    x = 178,773,280,938.61/476,063.55
  6. Step 6: Final answer
    x = 375,523.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.