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Finding the Fourth Proportional to 591,624.40, 887,436.60 and 442,908.40

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Solution

The fourth proportional to 591,624.40, 887,436.60 and 442,908.40 is: 664,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,624.40 : 887,436.60 = 442,908.40 : x
  2. Step 2: Convert to fraction form
    591,624.40/887,436.60 = 442,908.40/x
  3. Step 3: Cross multiply
    591,624.40x = 887,436.60 × 442,908.40
  4. Step 4: Simplify right side
    591,624.40x = 393,053,124,607.44
  5. Step 5: Solve for x
    x = 393,053,124,607.44/591,624.40
  6. Step 6: Final answer
    x = 664,362.60

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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.