Home / 1,242,099.80-1,863,149.70-443,407.40

Finding the Fourth Proportional to 1,242,099.80, 1,863,149.70 and 443,407.40

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Solution

The fourth proportional to 1,242,099.80, 1,863,149.70 and 443,407.40 is: 665,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,099.80 : 1,863,149.70 = 443,407.40 : x
  2. Step 2: Convert to fraction form
    1,242,099.80/1,863,149.70 = 443,407.40/x
  3. Step 3: Cross multiply
    1,242,099.80x = 1,863,149.70 × 443,407.40
  4. Step 4: Simplify right side
    1,242,099.80x = 826,134,364,287.78
  5. Step 5: Solve for x
    x = 826,134,364,287.78/1,242,099.80
  6. Step 6: Final answer
    x = 665,111.10

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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.