Home / 805,241.68-1,111,247.22-442,680.64

Finding the Fourth Proportional to 805,241.68, 1,111,247.22 and 442,680.64

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Solution

The fourth proportional to 805,241.68, 1,111,247.22 and 442,680.64 is: 610,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,241.68 : 1,111,247.22 = 442,680.64 : x
  2. Step 2: Convert to fraction form
    805,241.68/1,111,247.22 = 442,680.64/x
  3. Step 3: Cross multiply
    805,241.68x = 1,111,247.22 × 442,680.64
  4. Step 4: Simplify right side
    805,241.68x = 491,927,630,547.82
  5. Step 5: Solve for x
    x = 491,927,630,547.82/805,241.68
  6. Step 6: Final answer
    x = 610,906.82

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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.