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Finding the Fourth Proportional to 360,739.80, 497,480.10 and 269,061.30

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Solution

The fourth proportional to 360,739.80, 497,480.10 and 269,061.30 is: 371,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,739.80 : 497,480.10 = 269,061.30 : x
  2. Step 2: Convert to fraction form
    360,739.80/497,480.10 = 269,061.30/x
  3. Step 3: Cross multiply
    360,739.80x = 497,480.10 × 269,061.30
  4. Step 4: Simplify right side
    360,739.80x = 133,852,642,430.13
  5. Step 5: Solve for x
    x = 133,852,642,430.13/360,739.80
  6. Step 6: Final answer
    x = 371,050.39

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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.