Home / 940,803.20-1,411,204.80-443,139.20

Finding the Fourth Proportional to 940,803.20, 1,411,204.80 and 443,139.20

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Solution

The fourth proportional to 940,803.20, 1,411,204.80 and 443,139.20 is: 664,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,803.20 : 1,411,204.80 = 443,139.20 : x
  2. Step 2: Convert to fraction form
    940,803.20/1,411,204.80 = 443,139.20/x
  3. Step 3: Cross multiply
    940,803.20x = 1,411,204.80 × 443,139.20
  4. Step 4: Simplify right side
    940,803.20x = 625,360,166,108.16
  5. Step 5: Solve for x
    x = 625,360,166,108.16/940,803.20
  6. Step 6: Final answer
    x = 664,708.80

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Double scale
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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.