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Finding the Fourth Proportional to 404,397.90, 607,096.05 and 254,637.90

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Solution

The fourth proportional to 404,397.90, 607,096.05 and 254,637.90 is: 382,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,397.90 : 607,096.05 = 254,637.90 : x
  2. Step 2: Convert to fraction form
    404,397.90/607,096.05 = 254,637.90/x
  3. Step 3: Cross multiply
    404,397.90x = 607,096.05 × 254,637.90
  4. Step 4: Simplify right side
    404,397.90x = 154,589,663,270.30
  5. Step 5: Solve for x
    x = 154,589,663,270.30/404,397.90
  6. Step 6: Final answer
    x = 382,271.18

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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.