Home / 511,928.78-767,295.18-385,161.70

Finding the Fourth Proportional to 511,928.78, 767,295.18 and 385,161.70

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Solution

The fourth proportional to 511,928.78, 767,295.18 and 385,161.70 is: 577,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,928.78 : 767,295.18 = 385,161.70 : x
  2. Step 2: Convert to fraction form
    511,928.78/767,295.18 = 385,161.70/x
  3. Step 3: Cross multiply
    511,928.78x = 767,295.18 × 385,161.70
  4. Step 4: Simplify right side
    511,928.78x = 295,532,715,930.61
  5. Step 5: Solve for x
    x = 295,532,715,930.61/511,928.78
  6. Step 6: Final answer
    x = 577,292.64

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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.