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Finding the Fourth Proportional to 404,328.60, 606,492.90 and 254,737.80

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Solution

The fourth proportional to 404,328.60, 606,492.90 and 254,737.80 is: 382,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,328.60 : 606,492.90 = 254,737.80 : x
  2. Step 2: Convert to fraction form
    404,328.60/606,492.90 = 254,737.80/x
  3. Step 3: Cross multiply
    404,328.60x = 606,492.90 × 254,737.80
  4. Step 4: Simplify right side
    404,328.60x = 154,496,667,061.62
  5. Step 5: Solve for x
    x = 154,496,667,061.62/404,328.60
  6. Step 6: Final answer
    x = 382,106.70

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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.