Home / 805,451.85-1,111,495.10-442,873.17

Finding the Fourth Proportional to 805,451.85, 1,111,495.10 and 442,873.17

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Solution

The fourth proportional to 805,451.85, 1,111,495.10 and 442,873.17 is: 611,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,451.85 : 1,111,495.10 = 442,873.17 : x
  2. Step 2: Convert to fraction form
    805,451.85/1,111,495.10 = 442,873.17/x
  3. Step 3: Cross multiply
    805,451.85x = 1,111,495.10 × 442,873.17
  4. Step 4: Simplify right side
    805,451.85x = 492,251,350,604.63
  5. Step 5: Solve for x
    x = 492,251,350,604.63/805,451.85
  6. Step 6: Final answer
    x = 611,149.32

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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.