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Finding the Fourth Proportional to 591,253.20, 886,879.80 and 402,296.40

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Solution

The fourth proportional to 591,253.20, 886,879.80 and 402,296.40 is: 603,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,253.20 : 886,879.80 = 402,296.40 : x
  2. Step 2: Convert to fraction form
    591,253.20/886,879.80 = 402,296.40/x
  3. Step 3: Cross multiply
    591,253.20x = 886,879.80 × 402,296.40
  4. Step 4: Simplify right side
    591,253.20x = 356,788,550,772.72
  5. Step 5: Solve for x
    x = 356,788,550,772.72/591,253.20
  6. Step 6: Final answer
    x = 603,444.60

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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.