Home / 587,934.04-811,347.90-319,661.40

Finding the Fourth Proportional to 587,934.04, 811,347.90 and 319,661.40

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Solution

The fourth proportional to 587,934.04, 811,347.90 and 319,661.40 is: 441,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,934.04 : 811,347.90 = 319,661.40 : x
  2. Step 2: Convert to fraction form
    587,934.04/811,347.90 = 319,661.40/x
  3. Step 3: Cross multiply
    587,934.04x = 811,347.90 × 319,661.40
  4. Step 4: Simplify right side
    587,934.04x = 259,356,605,601.06
  5. Step 5: Solve for x
    x = 259,356,605,601.06/587,934.04
  6. Step 6: Final answer
    x = 441,132.15

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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.