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Finding the Fourth Proportional to 480,561.26, 663,125.13 and 276,572.48

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Solution

The fourth proportional to 480,561.26, 663,125.13 and 276,572.48 is: 381,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,561.26 : 663,125.13 = 276,572.48 : x
  2. Step 2: Convert to fraction form
    480,561.26/663,125.13 = 276,572.48/x
  3. Step 3: Cross multiply
    480,561.26x = 663,125.13 × 276,572.48
  4. Step 4: Simplify right side
    480,561.26x = 183,402,158,438.80
  5. Step 5: Solve for x
    x = 183,402,158,438.80/480,561.26
  6. Step 6: Final answer
    x = 381,641.58

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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.