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Finding the Fourth Proportional to 404,235.10, 606,352.65 and 254,644.30

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Solution

The fourth proportional to 404,235.10, 606,352.65 and 254,644.30 is: 381,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,235.10 : 606,352.65 = 254,644.30 : x
  2. Step 2: Convert to fraction form
    404,235.10/606,352.65 = 254,644.30/x
  3. Step 3: Cross multiply
    404,235.10x = 606,352.65 × 254,644.30
  4. Step 4: Simplify right side
    404,235.10x = 154,404,246,112.40
  5. Step 5: Solve for x
    x = 154,404,246,112.40/404,235.10
  6. Step 6: Final answer
    x = 381,966.45

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1.5x scale

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.