Home / 805,612.68-1,111,774.05-443,064.57

Finding the Fourth Proportional to 805,612.68, 1,111,774.05 and 443,064.57

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Solution

The fourth proportional to 805,612.68, 1,111,774.05 and 443,064.57 is: 611,444.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,612.68 : 1,111,774.05 = 443,064.57 : x
  2. Step 2: Convert to fraction form
    805,612.68/1,111,774.05 = 443,064.57/x
  3. Step 3: Cross multiply
    805,612.68x = 1,111,774.05 × 443,064.57
  4. Step 4: Simplify right side
    805,612.68x = 492,587,691,400.41
  5. Step 5: Solve for x
    x = 492,587,691,400.41/805,612.68
  6. Step 6: Final answer
    x = 611,444.81

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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.