Home / 697,034.97-961,868.39-386,921.61

Finding the Fourth Proportional to 697,034.97, 961,868.39 and 386,921.61

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Solution

The fourth proportional to 697,034.97, 961,868.39 and 386,921.61 is: 533,929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,034.97 : 961,868.39 = 386,921.61 : x
  2. Step 2: Convert to fraction form
    697,034.97/961,868.39 = 386,921.61/x
  3. Step 3: Cross multiply
    697,034.97x = 961,868.39 × 386,921.61
  4. Step 4: Simplify right side
    697,034.97x = 372,167,664,132.30
  5. Step 5: Solve for x
    x = 372,167,664,132.30/697,034.97
  6. Step 6: Final answer
    x = 533,929.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.