Home / 805,240.68-1,111,245.84-442,679.64

Finding the Fourth Proportional to 805,240.68, 1,111,245.84 and 442,679.64

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Solution

The fourth proportional to 805,240.68, 1,111,245.84 and 442,679.64 is: 610,905.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,240.68 : 1,111,245.84 = 442,679.64 : x
  2. Step 2: Convert to fraction form
    805,240.68/1,111,245.84 = 442,679.64/x
  3. Step 3: Cross multiply
    805,240.68x = 1,111,245.84 × 442,679.64
  4. Step 4: Simplify right side
    805,240.68x = 491,925,908,402.70
  5. Step 5: Solve for x
    x = 491,925,908,402.70/805,240.68
  6. Step 6: Final answer
    x = 610,905.44

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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.