Home / 511,837.47-767,868.53-156,878.19

Finding the Fourth Proportional to 511,837.47, 767,868.53 and 156,878.19

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Solution

The fourth proportional to 511,837.47, 767,868.53 and 156,878.19 is: 235,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,837.47 : 767,868.53 = 156,878.19 : x
  2. Step 2: Convert to fraction form
    511,837.47/767,868.53 = 156,878.19/x
  3. Step 3: Cross multiply
    511,837.47x = 767,868.53 × 156,878.19
  4. Step 4: Simplify right side
    511,837.47x = 120,461,826,867.93
  5. Step 5: Solve for x
    x = 120,461,826,867.93/511,837.47
  6. Step 6: Final answer
    x = 235,351.71

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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.