Home / 691,812.60-1,037,718.90-243,040.20

Finding the Fourth Proportional to 691,812.60, 1,037,718.90 and 243,040.20

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Solution

The fourth proportional to 691,812.60, 1,037,718.90 and 243,040.20 is: 364,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,812.60 : 1,037,718.90 = 243,040.20 : x
  2. Step 2: Convert to fraction form
    691,812.60/1,037,718.90 = 243,040.20/x
  3. Step 3: Cross multiply
    691,812.60x = 1,037,718.90 × 243,040.20
  4. Step 4: Simplify right side
    691,812.60x = 252,207,408,999.78
  5. Step 5: Solve for x
    x = 252,207,408,999.78/691,812.60
  6. Step 6: Final answer
    x = 364,560.30

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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.