Home / 807,516.20-1,211,274.30-542,095.40

Finding the Fourth Proportional to 807,516.20, 1,211,274.30 and 542,095.40

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Solution

The fourth proportional to 807,516.20, 1,211,274.30 and 542,095.40 is: 813,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,516.20 : 1,211,274.30 = 542,095.40 : x
  2. Step 2: Convert to fraction form
    807,516.20/1,211,274.30 = 542,095.40/x
  3. Step 3: Cross multiply
    807,516.20x = 1,211,274.30 × 542,095.40
  4. Step 4: Simplify right side
    807,516.20x = 656,626,226,168.22
  5. Step 5: Solve for x
    x = 656,626,226,168.22/807,516.20
  6. Step 6: Final answer
    x = 813,143.10

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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.