Home / 805,211.46-1,111,195.38-442,658.64

Finding the Fourth Proportional to 805,211.46, 1,111,195.38 and 442,658.64

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Solution

The fourth proportional to 805,211.46, 1,111,195.38 and 442,658.64 is: 610,870.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,211.46 : 1,111,195.38 = 442,658.64 : x
  2. Step 2: Convert to fraction form
    805,211.46/1,111,195.38 = 442,658.64/x
  3. Step 3: Cross multiply
    805,211.46x = 1,111,195.38 × 442,658.64
  4. Step 4: Simplify right side
    805,211.46x = 491,880,235,685.08
  5. Step 5: Solve for x
    x = 491,880,235,685.08/805,211.46
  6. Step 6: Final answer
    x = 610,870.88

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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.