Home / 591,624.40-887,436.60-405,000.40

Finding the Fourth Proportional to 591,624.40, 887,436.60 and 405,000.40

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Solution

The fourth proportional to 591,624.40, 887,436.60 and 405,000.40 is: 607,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,624.40 : 887,436.60 = 405,000.40 : x
  2. Step 2: Convert to fraction form
    591,624.40/887,436.60 = 405,000.40/x
  3. Step 3: Cross multiply
    591,624.40x = 887,436.60 × 405,000.40
  4. Step 4: Simplify right side
    591,624.40x = 359,412,177,974.64
  5. Step 5: Solve for x
    x = 359,412,177,974.64/591,624.40
  6. Step 6: Final answer
    x = 607,500.60

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Double scale
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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.