Home / 697,136.60-961,956.34-391,201.24

Finding the Fourth Proportional to 697,136.60, 961,956.34 and 391,201.24

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Solution

The fourth proportional to 697,136.60, 961,956.34 and 391,201.24 is: 539,805.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,136.60 : 961,956.34 = 391,201.24 : x
  2. Step 2: Convert to fraction form
    697,136.60/961,956.34 = 391,201.24/x
  3. Step 3: Cross multiply
    697,136.60x = 961,956.34 × 391,201.24
  4. Step 4: Simplify right side
    697,136.60x = 376,318,513,033.86
  5. Step 5: Solve for x
    x = 376,318,513,033.86/697,136.60
  6. Step 6: Final answer
    x = 539,805.99

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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.