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Finding the Fourth Proportional to 591,283.20, 886,924.80 and 402,326.40

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Solution

The fourth proportional to 591,283.20, 886,924.80 and 402,326.40 is: 603,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,283.20 : 886,924.80 = 402,326.40 : x
  2. Step 2: Convert to fraction form
    591,283.20/886,924.80 = 402,326.40/x
  3. Step 3: Cross multiply
    591,283.20x = 886,924.80 × 402,326.40
  4. Step 4: Simplify right side
    591,283.20x = 356,833,261,854.72
  5. Step 5: Solve for x
    x = 356,833,261,854.72/591,283.20
  6. Step 6: Final answer
    x = 603,489.60

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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.