Home / 511,981.20-767,977.56-156,998.16

Finding the Fourth Proportional to 511,981.20, 767,977.56 and 156,998.16

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Solution

The fourth proportional to 511,981.20, 767,977.56 and 156,998.16 is: 235,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,981.20 : 767,977.56 = 156,998.16 : x
  2. Step 2: Convert to fraction form
    511,981.20/767,977.56 = 156,998.16/x
  3. Step 3: Cross multiply
    511,981.20x = 767,977.56 × 156,998.16
  4. Step 4: Simplify right side
    511,981.20x = 120,571,063,841.29
  5. Step 5: Solve for x
    x = 120,571,063,841.29/511,981.20
  6. Step 6: Final answer
    x = 235,499.01

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Half scale
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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.