Home / 805,187.16-1,111,172.06-442,626.30

Finding the Fourth Proportional to 805,187.16, 1,111,172.06 and 442,626.30

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Solution

The fourth proportional to 805,187.16, 1,111,172.06 and 442,626.30 is: 610,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,187.16 : 1,111,172.06 = 442,626.30 : x
  2. Step 2: Convert to fraction form
    805,187.16/1,111,172.06 = 442,626.30/x
  3. Step 3: Cross multiply
    805,187.16x = 1,111,172.06 × 442,626.30
  4. Step 4: Simplify right side
    805,187.16x = 491,833,977,581.18
  5. Step 5: Solve for x
    x = 491,833,977,581.18/805,187.16
  6. Step 6: Final answer
    x = 610,831.87

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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.