Home / 717,359.73-989,944.38-395,099.81

Finding the Fourth Proportional to 717,359.73, 989,944.38 and 395,099.81

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Solution

The fourth proportional to 717,359.73, 989,944.38 and 395,099.81 is: 545,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,359.73 : 989,944.38 = 395,099.81 : x
  2. Step 2: Convert to fraction form
    717,359.73/989,944.38 = 395,099.81/x
  3. Step 3: Cross multiply
    717,359.73x = 989,944.38 × 395,099.81
  4. Step 4: Simplify right side
    717,359.73x = 391,126,837,808.10
  5. Step 5: Solve for x
    x = 391,126,837,808.10/717,359.73
  6. Step 6: Final answer
    x = 545,231.11

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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.