Home / 881,778.76-1,216,949.76-499,764.52

Finding the Fourth Proportional to 881,778.76, 1,216,949.76 and 499,764.52

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Solution

The fourth proportional to 881,778.76, 1,216,949.76 and 499,764.52 is: 689,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,778.76 : 1,216,949.76 = 499,764.52 : x
  2. Step 2: Convert to fraction form
    881,778.76/1,216,949.76 = 499,764.52/x
  3. Step 3: Cross multiply
    881,778.76x = 1,216,949.76 × 499,764.52
  4. Step 4: Simplify right side
    881,778.76x = 608,188,312,670.52
  5. Step 5: Solve for x
    x = 608,188,312,670.52/881,778.76
  6. Step 6: Final answer
    x = 689,728.92

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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.