Home / 805,214.06-1,111,196.63-442,640.14

Finding the Fourth Proportional to 805,214.06, 1,111,196.63 and 442,640.14

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Solution

The fourth proportional to 805,214.06, 1,111,196.63 and 442,640.14 is: 610,844.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,214.06 : 1,111,196.63 = 442,640.14 : x
  2. Step 2: Convert to fraction form
    805,214.06/1,111,196.63 = 442,640.14/x
  3. Step 3: Cross multiply
    805,214.06x = 1,111,196.63 × 442,640.14
  4. Step 4: Simplify right side
    805,214.06x = 491,860,233,959.97
  5. Step 5: Solve for x
    x = 491,860,233,959.97/805,214.06
  6. Step 6: Final answer
    x = 610,844.07

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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.