Home / 527,440.02-791,156.52-128,078.07

Finding the Fourth Proportional to 527,440.02, 791,156.52 and 128,078.07

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Solution

The fourth proportional to 527,440.02, 791,156.52 and 128,078.07 is: 192,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,440.02 : 791,156.52 = 128,078.07 : x
  2. Step 2: Convert to fraction form
    527,440.02/791,156.52 = 128,078.07/x
  3. Step 3: Cross multiply
    527,440.02x = 791,156.52 × 128,078.07
  4. Step 4: Simplify right side
    527,440.02x = 101,329,800,149.52
  5. Step 5: Solve for x
    x = 101,329,800,149.52/527,440.02
  6. Step 6: Final answer
    x = 192,116.25

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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.