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Finding the Fourth Proportional to 587,643.20, 880,444.20 and 271,451.60

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Solution

The fourth proportional to 587,643.20, 880,444.20 and 271,451.60 is: 406,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,643.20 : 880,444.20 = 271,451.60 : x
  2. Step 2: Convert to fraction form
    587,643.20/880,444.20 = 271,451.60/x
  3. Step 3: Cross multiply
    587,643.20x = 880,444.20 × 271,451.60
  4. Step 4: Simplify right side
    587,643.20x = 238,997,986,800.72
  5. Step 5: Solve for x
    x = 238,997,986,800.72/587,643.20
  6. Step 6: Final answer
    x = 406,705.95

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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.