Home / 658,439.86-987,718.11-185,129.32

Finding the Fourth Proportional to 658,439.86, 987,718.11 and 185,129.32

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Solution

The fourth proportional to 658,439.86, 987,718.11 and 185,129.32 is: 277,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,439.86 : 987,718.11 = 185,129.32 : x
  2. Step 2: Convert to fraction form
    658,439.86/987,718.11 = 185,129.32/x
  3. Step 3: Cross multiply
    658,439.86x = 987,718.11 × 185,129.32
  4. Step 4: Simplify right side
    658,439.86x = 182,855,582,055.99
  5. Step 5: Solve for x
    x = 182,855,582,055.99/658,439.86
  6. Step 6: Final answer
    x = 277,710.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.