Home / 805,186.65-1,111,171.38-442,625.79

Finding the Fourth Proportional to 805,186.65, 1,111,171.38 and 442,625.79

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Solution

The fourth proportional to 805,186.65, 1,111,171.38 and 442,625.79 is: 610,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,186.65 : 1,111,171.38 = 442,625.79 : x
  2. Step 2: Convert to fraction form
    805,186.65/1,111,171.38 = 442,625.79/x
  3. Step 3: Cross multiply
    805,186.65x = 1,111,171.38 × 442,625.79
  4. Step 4: Simplify right side
    805,186.65x = 491,833,109,897.89
  5. Step 5: Solve for x
    x = 491,833,109,897.89/805,186.65
  6. Step 6: Final answer
    x = 610,831.18

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Double scale
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1.5x scale

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.