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Finding the Fourth Proportional to 1,976,792.48, 2,965,188.72 and 480,871.52

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Solution

The fourth proportional to 1,976,792.48, 2,965,188.72 and 480,871.52 is: 721,307.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,792.48 : 2,965,188.72 = 480,871.52 : x
  2. Step 2: Convert to fraction form
    1,976,792.48/2,965,188.72 = 480,871.52/x
  3. Step 3: Cross multiply
    1,976,792.48x = 2,965,188.72 × 480,871.52
  4. Step 4: Simplify right side
    1,976,792.48x = 1,425,874,806,873.25
  5. Step 5: Solve for x
    x = 1,425,874,806,873.25/1,976,792.48
  6. Step 6: Final answer
    x = 721,307.28

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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.