Home / 805,185.90-1,111,170.34-442,625.04

Finding the Fourth Proportional to 805,185.90, 1,111,170.34 and 442,625.04

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Solution

The fourth proportional to 805,185.90, 1,111,170.34 and 442,625.04 is: 610,830.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,185.90 : 1,111,170.34 = 442,625.04 : x
  2. Step 2: Convert to fraction form
    805,185.90/1,111,170.34 = 442,625.04/x
  3. Step 3: Cross multiply
    805,185.90x = 1,111,170.34 × 442,625.04
  4. Step 4: Simplify right side
    805,185.90x = 491,831,810,633.46
  5. Step 5: Solve for x
    x = 491,831,810,633.46/805,185.90
  6. Step 6: Final answer
    x = 610,830.14

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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.