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Finding the Fourth Proportional to 605,569.20, 908,353.80 and 416,612.40

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Solution

The fourth proportional to 605,569.20, 908,353.80 and 416,612.40 is: 624,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,569.20 : 908,353.80 = 416,612.40 : x
  2. Step 2: Convert to fraction form
    605,569.20/908,353.80 = 416,612.40/x
  3. Step 3: Cross multiply
    605,569.20x = 908,353.80 × 416,612.40
  4. Step 4: Simplify right side
    605,569.20x = 378,431,456,667.12
  5. Step 5: Solve for x
    x = 378,431,456,667.12/605,569.20
  6. Step 6: Final answer
    x = 624,918.60

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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.