Home / 697,056.11-961,937.90-391,090.25

Finding the Fourth Proportional to 697,056.11, 961,937.90 and 391,090.25

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Solution

The fourth proportional to 697,056.11, 961,937.90 and 391,090.25 is: 539,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,056.11 : 961,937.90 = 391,090.25 : x
  2. Step 2: Convert to fraction form
    697,056.11/961,937.90 = 391,090.25/x
  3. Step 3: Cross multiply
    697,056.11x = 961,937.90 × 391,090.25
  4. Step 4: Simplify right side
    697,056.11x = 376,204,537,178.05
  5. Step 5: Solve for x
    x = 376,204,537,178.05/697,056.11
  6. Step 6: Final answer
    x = 539,704.82

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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.