Home / 697,238.32-962,109.60-391,251.52

Finding the Fourth Proportional to 697,238.32, 962,109.60 and 391,251.52

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Solution

The fourth proportional to 697,238.32, 962,109.60 and 391,251.52 is: 539,882.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,238.32 : 962,109.60 = 391,251.52 : x
  2. Step 2: Convert to fraction form
    697,238.32/962,109.60 = 391,251.52/x
  3. Step 3: Cross multiply
    697,238.32x = 962,109.60 × 391,251.52
  4. Step 4: Simplify right side
    697,238.32x = 376,426,843,406.59
  5. Step 5: Solve for x
    x = 376,426,843,406.59/697,238.32
  6. Step 6: Final answer
    x = 539,882.61

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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.