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Finding the Fourth Proportional to 584,872.40, 878,230.20 and 336,040.40

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Solution

The fourth proportional to 584,872.40, 878,230.20 and 336,040.40 is: 504,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,872.40 : 878,230.20 = 336,040.40 : x
  2. Step 2: Convert to fraction form
    584,872.40/878,230.20 = 336,040.40/x
  3. Step 3: Cross multiply
    584,872.40x = 878,230.20 × 336,040.40
  4. Step 4: Simplify right side
    584,872.40x = 295,120,827,700.08
  5. Step 5: Solve for x
    x = 295,120,827,700.08/584,872.40
  6. Step 6: Final answer
    x = 504,590.11

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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.