Home / 527,618.57-791,422.02-128,259.73

Finding the Fourth Proportional to 527,618.57, 791,422.02 and 128,259.73

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Solution

The fourth proportional to 527,618.57, 791,422.02 and 128,259.73 is: 192,388.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,618.57 : 791,422.02 = 128,259.73 : x
  2. Step 2: Convert to fraction form
    527,618.57/791,422.02 = 128,259.73/x
  3. Step 3: Cross multiply
    527,618.57x = 791,422.02 × 128,259.73
  4. Step 4: Simplify right side
    527,618.57x = 101,507,574,601.26
  5. Step 5: Solve for x
    x = 101,507,574,601.26/527,618.57
  6. Step 6: Final answer
    x = 192,388.18

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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.