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Finding the Fourth Proportional to 576,987.20, 865,480.80 and 150,522.20

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Solution

The fourth proportional to 576,987.20, 865,480.80 and 150,522.20 is: 225,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,987.20 : 865,480.80 = 150,522.20 : x
  2. Step 2: Convert to fraction form
    576,987.20/865,480.80 = 150,522.20/x
  3. Step 3: Cross multiply
    576,987.20x = 865,480.80 × 150,522.20
  4. Step 4: Simplify right side
    576,987.20x = 130,274,074,073.76
  5. Step 5: Solve for x
    x = 130,274,074,073.76/576,987.20
  6. Step 6: Final answer
    x = 225,783.30

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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.