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Finding the Fourth Proportional to 400,134.70, 600,202.65 and 163,477.61

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Solution

The fourth proportional to 400,134.70, 600,202.65 and 163,477.61 is: 245,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,134.70 : 600,202.65 = 163,477.61 : x
  2. Step 2: Convert to fraction form
    400,134.70/600,202.65 = 163,477.61/x
  3. Step 3: Cross multiply
    400,134.70x = 600,202.65 × 163,477.61
  4. Step 4: Simplify right side
    400,134.70x = 98,119,694,737.67
  5. Step 5: Solve for x
    x = 98,119,694,737.67/400,134.70
  6. Step 6: Final answer
    x = 245,216.66

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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.