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Finding the Fourth Proportional to 404,603.80, 606,905.70 and 254,356.90

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Solution

The fourth proportional to 404,603.80, 606,905.70 and 254,356.90 is: 381,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,603.80 : 606,905.70 = 254,356.90 : x
  2. Step 2: Convert to fraction form
    404,603.80/606,905.70 = 254,356.90/x
  3. Step 3: Cross multiply
    404,603.80x = 606,905.70 × 254,356.90
  4. Step 4: Simplify right side
    404,603.80x = 154,370,652,444.33
  5. Step 5: Solve for x
    x = 154,370,652,444.33/404,603.80
  6. Step 6: Final answer
    x = 381,535.35

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Similar ratio
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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.