Home / 385,110.54-577,443.46-118,799.55

Finding the Fourth Proportional to 385,110.54, 577,443.46 and 118,799.55

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Solution

The fourth proportional to 385,110.54, 577,443.46 and 118,799.55 is: 178,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,110.54 : 577,443.46 = 118,799.55 : x
  2. Step 2: Convert to fraction form
    385,110.54/577,443.46 = 118,799.55/x
  3. Step 3: Cross multiply
    385,110.54x = 577,443.46 × 118,799.55
  4. Step 4: Simplify right side
    385,110.54x = 68,600,023,198.44
  5. Step 5: Solve for x
    x = 68,600,023,198.44/385,110.54
  6. Step 6: Final answer
    x = 178,130.73

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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.