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Finding the Fourth Proportional to 479,095.76, 661,182.36 and 275,210.48

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Solution

The fourth proportional to 479,095.76, 661,182.36 and 275,210.48 is: 379,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,095.76 : 661,182.36 = 275,210.48 : x
  2. Step 2: Convert to fraction form
    479,095.76/661,182.36 = 275,210.48/x
  3. Step 3: Cross multiply
    479,095.76x = 661,182.36 × 275,210.48
  4. Step 4: Simplify right side
    479,095.76x = 181,964,314,663.13
  5. Step 5: Solve for x
    x = 181,964,314,663.13/479,095.76
  6. Step 6: Final answer
    x = 379,807.82

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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.