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Finding the Fourth Proportional to 316,760.20, 474,477.90 and 148,424.20

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Solution

The fourth proportional to 316,760.20, 474,477.90 and 148,424.20 is: 222,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,760.20 : 474,477.90 = 148,424.20 : x
  2. Step 2: Convert to fraction form
    316,760.20/474,477.90 = 148,424.20/x
  3. Step 3: Cross multiply
    316,760.20x = 474,477.90 × 148,424.20
  4. Step 4: Simplify right side
    316,760.20x = 70,424,002,725.18
  5. Step 5: Solve for x
    x = 70,424,002,725.18/316,760.20
  6. Step 6: Final answer
    x = 222,325.92

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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.