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Finding the Fourth Proportional to 400,427.48, 600,694.06 and 147,885.47

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Solution

The fourth proportional to 400,427.48, 600,694.06 and 147,885.47 is: 221,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,427.48 : 600,694.06 = 147,885.47 : x
  2. Step 2: Convert to fraction form
    400,427.48/600,694.06 = 147,885.47/x
  3. Step 3: Cross multiply
    400,427.48x = 600,694.06 × 147,885.47
  4. Step 4: Simplify right side
    400,427.48x = 88,833,923,389.31
  5. Step 5: Solve for x
    x = 88,833,923,389.31/400,427.48
  6. Step 6: Final answer
    x = 221,847.72

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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.