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Finding the Fourth Proportional to 585,632.70, 878,007.33 and 319,620.06

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Solution

The fourth proportional to 585,632.70, 878,007.33 and 319,620.06 is: 479,189.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,632.70 : 878,007.33 = 319,620.06 : x
  2. Step 2: Convert to fraction form
    585,632.70/878,007.33 = 319,620.06/x
  3. Step 3: Cross multiply
    585,632.70x = 878,007.33 × 319,620.06
  4. Step 4: Simplify right side
    585,632.70x = 280,628,755,495.04
  5. Step 5: Solve for x
    x = 280,628,755,495.04/585,632.70
  6. Step 6: Final answer
    x = 479,189.01

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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.