Home / 696,996.64-961,871.95-391,095.65

Finding the Fourth Proportional to 696,996.64, 961,871.95 and 391,095.65

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Solution

The fourth proportional to 696,996.64, 961,871.95 and 391,095.65 is: 539,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,996.64 : 961,871.95 = 391,095.65 : x
  2. Step 2: Convert to fraction form
    696,996.64/961,871.95 = 391,095.65/x
  3. Step 3: Cross multiply
    696,996.64x = 961,871.95 × 391,095.65
  4. Step 4: Simplify right side
    696,996.64x = 376,183,935,951.22
  5. Step 5: Solve for x
    x = 376,183,935,951.22/696,996.64
  6. Step 6: Final answer
    x = 539,721.30

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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.