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Finding the Fourth Proportional to 310,844.61, 465,649.59 and 239,519.79

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Solution

The fourth proportional to 310,844.61, 465,649.59 and 239,519.79 is: 358,804.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,844.61 : 465,649.59 = 239,519.79 : x
  2. Step 2: Convert to fraction form
    310,844.61/465,649.59 = 239,519.79/x
  3. Step 3: Cross multiply
    310,844.61x = 465,649.59 × 239,519.79
  4. Step 4: Simplify right side
    310,844.61x = 111,532,292,010.39
  5. Step 5: Solve for x
    x = 111,532,292,010.39/310,844.61
  6. Step 6: Final answer
    x = 358,804.01

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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.