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Finding the Fourth Proportional to 585,066.40, 878,521.20 and 336,234.40

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Solution

The fourth proportional to 585,066.40, 878,521.20 and 336,234.40 is: 504,881.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,066.40 : 878,521.20 = 336,234.40 : x
  2. Step 2: Convert to fraction form
    585,066.40/878,521.20 = 336,234.40/x
  3. Step 3: Cross multiply
    585,066.40x = 878,521.20 × 336,234.40
  4. Step 4: Simplify right side
    585,066.40x = 295,389,048,569.28
  5. Step 5: Solve for x
    x = 295,389,048,569.28/585,066.40
  6. Step 6: Final answer
    x = 504,881.24

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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.