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Finding the Fourth Proportional to 395,785.13, 546,210.81 and 240,796.90

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Solution

The fourth proportional to 395,785.13, 546,210.81 and 240,796.90 is: 332,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,785.13 : 546,210.81 = 240,796.90 : x
  2. Step 2: Convert to fraction form
    395,785.13/546,210.81 = 240,796.90/x
  3. Step 3: Cross multiply
    395,785.13x = 546,210.81 × 240,796.90
  4. Step 4: Simplify right side
    395,785.13x = 131,525,869,794.49
  5. Step 5: Solve for x
    x = 131,525,869,794.49/395,785.13
  6. Step 6: Final answer
    x = 332,316.35

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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.