Home / 511,405.14-767,138.47-156,422.24

Finding the Fourth Proportional to 511,405.14, 767,138.47 and 156,422.24

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Solution

The fourth proportional to 511,405.14, 767,138.47 and 156,422.24 is: 234,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,405.14 : 767,138.47 = 156,422.24 : x
  2. Step 2: Convert to fraction form
    511,405.14/767,138.47 = 156,422.24/x
  3. Step 3: Cross multiply
    511,405.14x = 767,138.47 × 156,422.24
  4. Step 4: Simplify right side
    511,405.14x = 119,997,513,249.77
  5. Step 5: Solve for x
    x = 119,997,513,249.77/511,405.14
  6. Step 6: Final answer
    x = 234,642.76

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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.