Home / 527,979.44-727,906.76-419,443.92

Finding the Fourth Proportional to 527,979.44, 727,906.76 and 419,443.92

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Solution

The fourth proportional to 527,979.44, 727,906.76 and 419,443.92 is: 578,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,979.44 : 727,906.76 = 419,443.92 : x
  2. Step 2: Convert to fraction form
    527,979.44/727,906.76 = 419,443.92/x
  3. Step 3: Cross multiply
    527,979.44x = 727,906.76 × 419,443.92
  4. Step 4: Simplify right side
    527,979.44x = 305,316,064,808.90
  5. Step 5: Solve for x
    x = 305,316,064,808.90/527,979.44
  6. Step 6: Final answer
    x = 578,272.64

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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.