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Finding the Fourth Proportional to 382,746.80, 572,759.40 and 333,369.20

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Solution

The fourth proportional to 382,746.80, 572,759.40 and 333,369.20 is: 498,868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,746.80 : 572,759.40 = 333,369.20 : x
  2. Step 2: Convert to fraction form
    382,746.80/572,759.40 = 333,369.20/x
  3. Step 3: Cross multiply
    382,746.80x = 572,759.40 × 333,369.20
  4. Step 4: Simplify right side
    382,746.80x = 190,940,342,970.48
  5. Step 5: Solve for x
    x = 190,940,342,970.48/382,746.80
  6. Step 6: Final answer
    x = 498,868.55

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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.