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Finding the Fourth Proportional to 409,423.49, 614,325.44 and 156,620.40

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Solution

The fourth proportional to 409,423.49, 614,325.44 and 156,620.40 is: 235,003.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,423.49 : 614,325.44 = 156,620.40 : x
  2. Step 2: Convert to fraction form
    409,423.49/614,325.44 = 156,620.40/x
  3. Step 3: Cross multiply
    409,423.49x = 614,325.44 × 156,620.40
  4. Step 4: Simplify right side
    409,423.49x = 96,215,895,359.87
  5. Step 5: Solve for x
    x = 96,215,895,359.87/409,423.49
  6. Step 6: Final answer
    x = 235,003.36

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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.