Home / 628,366.20-942,549.30-560,131.80

Finding the Fourth Proportional to 628,366.20, 942,549.30 and 560,131.80

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Solution

The fourth proportional to 628,366.20, 942,549.30 and 560,131.80 is: 840,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,366.20 : 942,549.30 = 560,131.80 : x
  2. Step 2: Convert to fraction form
    628,366.20/942,549.30 = 560,131.80/x
  3. Step 3: Cross multiply
    628,366.20x = 942,549.30 × 560,131.80
  4. Step 4: Simplify right side
    628,366.20x = 527,951,835,997.74
  5. Step 5: Solve for x
    x = 527,951,835,997.74/628,366.20
  6. Step 6: Final answer
    x = 840,197.70

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Double scale
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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.