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Finding the Fourth Proportional to 404,710.80, 607,066.20 and 254,463.90

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Solution

The fourth proportional to 404,710.80, 607,066.20 and 254,463.90 is: 381,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,710.80 : 607,066.20 = 254,463.90 : x
  2. Step 2: Convert to fraction form
    404,710.80/607,066.20 = 254,463.90/x
  3. Step 3: Cross multiply
    404,710.80x = 607,066.20 × 254,463.90
  4. Step 4: Simplify right side
    404,710.80x = 154,476,432,810.18
  5. Step 5: Solve for x
    x = 154,476,432,810.18/404,710.80
  6. Step 6: Final answer
    x = 381,695.85

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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.