Home / 697,168.35-961,873.02-391,199.76

Finding the Fourth Proportional to 697,168.35, 961,873.02 and 391,199.76

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Solution

The fourth proportional to 697,168.35, 961,873.02 and 391,199.76 is: 539,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,168.35 : 961,873.02 = 391,199.76 : x
  2. Step 2: Convert to fraction form
    697,168.35/961,873.02 = 391,199.76/x
  3. Step 3: Cross multiply
    697,168.35x = 961,873.02 × 391,199.76
  4. Step 4: Simplify right side
    697,168.35x = 376,284,494,574.48
  5. Step 5: Solve for x
    x = 376,284,494,574.48/697,168.35
  6. Step 6: Final answer
    x = 539,732.61

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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.