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Finding the Fourth Proportional to 605,519.20, 908,278.80 and 463,801.60

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Solution

The fourth proportional to 605,519.20, 908,278.80 and 463,801.60 is: 695,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,519.20 : 908,278.80 = 463,801.60 : x
  2. Step 2: Convert to fraction form
    605,519.20/908,278.80 = 463,801.60/x
  3. Step 3: Cross multiply
    605,519.20x = 908,278.80 × 463,801.60
  4. Step 4: Simplify right side
    605,519.20x = 421,261,160,686.08
  5. Step 5: Solve for x
    x = 421,261,160,686.08/605,519.20
  6. Step 6: Final answer
    x = 695,702.40

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Double scale
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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.