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Finding the Fourth Proportional to 483,733.80, 725,600.70 and 440,188.20

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Solution

The fourth proportional to 483,733.80, 725,600.70 and 440,188.20 is: 660,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,733.80 : 725,600.70 = 440,188.20 : x
  2. Step 2: Convert to fraction form
    483,733.80/725,600.70 = 440,188.20/x
  3. Step 3: Cross multiply
    483,733.80x = 725,600.70 × 440,188.20
  4. Step 4: Simplify right side
    483,733.80x = 319,400,866,051.74
  5. Step 5: Solve for x
    x = 319,400,866,051.74/483,733.80
  6. Step 6: Final answer
    x = 660,282.30

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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.