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Finding the Fourth Proportional to 474,027.40, 711,041.10 and 442,923.40

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Solution

The fourth proportional to 474,027.40, 711,041.10 and 442,923.40 is: 664,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,027.40 : 711,041.10 = 442,923.40 : x
  2. Step 2: Convert to fraction form
    474,027.40/711,041.10 = 442,923.40/x
  3. Step 3: Cross multiply
    474,027.40x = 711,041.10 × 442,923.40
  4. Step 4: Simplify right side
    474,027.40x = 314,936,741,551.74
  5. Step 5: Solve for x
    x = 314,936,741,551.74/474,027.40
  6. Step 6: Final answer
    x = 664,385.10

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Similar ratio
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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.