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Finding the Fourth Proportional to 437,424.76, 656,137.16 and 105,000.76

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Solution

The fourth proportional to 437,424.76, 656,137.16 and 105,000.76 is: 157,501.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,424.76 : 656,137.16 = 105,000.76 : x
  2. Step 2: Convert to fraction form
    437,424.76/656,137.16 = 105,000.76/x
  3. Step 3: Cross multiply
    437,424.76x = 656,137.16 × 105,000.76
  4. Step 4: Simplify right side
    437,424.76x = 68,894,900,464.24
  5. Step 5: Solve for x
    x = 68,894,900,464.24/437,424.76
  6. Step 6: Final answer
    x = 157,501.14

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Double scale
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Similar ratio
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1.5x scale

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.