Home / 641,860.32-885,864.24-369,968.52

Finding the Fourth Proportional to 641,860.32, 885,864.24 and 369,968.52

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Solution

The fourth proportional to 641,860.32, 885,864.24 and 369,968.52 is: 510,612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,860.32 : 885,864.24 = 369,968.52 : x
  2. Step 2: Convert to fraction form
    641,860.32/885,864.24 = 369,968.52/x
  3. Step 3: Cross multiply
    641,860.32x = 885,864.24 × 369,968.52
  4. Step 4: Simplify right side
    641,860.32x = 327,741,881,793.73
  5. Step 5: Solve for x
    x = 327,741,881,793.73/641,860.32
  6. Step 6: Final answer
    x = 510,612.47

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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.