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Finding the Fourth Proportional to 534,231.20, 801,346.80 and 355,480.40

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Solution

The fourth proportional to 534,231.20, 801,346.80 and 355,480.40 is: 533,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,231.20 : 801,346.80 = 355,480.40 : x
  2. Step 2: Convert to fraction form
    534,231.20/801,346.80 = 355,480.40/x
  3. Step 3: Cross multiply
    534,231.20x = 801,346.80 × 355,480.40
  4. Step 4: Simplify right side
    534,231.20x = 284,863,081,002.72
  5. Step 5: Solve for x
    x = 284,863,081,002.72/534,231.20
  6. Step 6: Final answer
    x = 533,220.60

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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.