Home / 778,812.10-1,168,218.15-187,836.10

Finding the Fourth Proportional to 778,812.10, 1,168,218.15 and 187,836.10

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Solution

The fourth proportional to 778,812.10, 1,168,218.15 and 187,836.10 is: 281,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,812.10 : 1,168,218.15 = 187,836.10 : x
  2. Step 2: Convert to fraction form
    778,812.10/1,168,218.15 = 187,836.10/x
  3. Step 3: Cross multiply
    778,812.10x = 1,168,218.15 × 187,836.10
  4. Step 4: Simplify right side
    778,812.10x = 219,433,541,245.22
  5. Step 5: Solve for x
    x = 219,433,541,245.22/778,812.10
  6. Step 6: Final answer
    x = 281,754.15

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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.