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Finding the Fourth Proportional to 437,988.76, 656,778.70 and 227,570.20

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Solution

The fourth proportional to 437,988.76, 656,778.70 and 227,570.20 is: 341,249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,988.76 : 656,778.70 = 227,570.20 : x
  2. Step 2: Convert to fraction form
    437,988.76/656,778.70 = 227,570.20/x
  3. Step 3: Cross multiply
    437,988.76x = 656,778.70 × 227,570.20
  4. Step 4: Simplify right side
    437,988.76x = 149,463,260,114.74
  5. Step 5: Solve for x
    x = 149,463,260,114.74/437,988.76
  6. Step 6: Final answer
    x = 341,249.08

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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.