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Finding the Fourth Proportional to 404,313.90, 606,970.05 and 254,553.90

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Solution

The fourth proportional to 404,313.90, 606,970.05 and 254,553.90 is: 382,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,313.90 : 606,970.05 = 254,553.90 : x
  2. Step 2: Convert to fraction form
    404,313.90/606,970.05 = 254,553.90/x
  3. Step 3: Cross multiply
    404,313.90x = 606,970.05 × 254,553.90
  4. Step 4: Simplify right side
    404,313.90x = 154,506,593,410.70
  5. Step 5: Solve for x
    x = 154,506,593,410.70/404,313.90
  6. Step 6: Final answer
    x = 382,145.14

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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.