Home / 527,618.95-791,422.58-128,260.10

Finding the Fourth Proportional to 527,618.95, 791,422.58 and 128,260.10

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Solution

The fourth proportional to 527,618.95, 791,422.58 and 128,260.10 is: 192,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,618.95 : 791,422.58 = 128,260.10 : x
  2. Step 2: Convert to fraction form
    527,618.95/791,422.58 = 128,260.10/x
  3. Step 3: Cross multiply
    527,618.95x = 791,422.58 × 128,260.10
  4. Step 4: Simplify right side
    527,618.95x = 101,507,939,253.06
  5. Step 5: Solve for x
    x = 101,507,939,253.06/527,618.95
  6. Step 6: Final answer
    x = 192,388.73

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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.