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Finding the Fourth Proportional to 585,809.39, 878,397.98 and 265,786.61

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Solution

The fourth proportional to 585,809.39, 878,397.98 and 265,786.61 is: 398,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,809.39 : 878,397.98 = 265,786.61 : x
  2. Step 2: Convert to fraction form
    585,809.39/878,397.98 = 265,786.61/x
  3. Step 3: Cross multiply
    585,809.39x = 878,397.98 × 265,786.61
  4. Step 4: Simplify right side
    585,809.39x = 233,466,415,614.13
  5. Step 5: Solve for x
    x = 233,466,415,614.13/585,809.39
  6. Step 6: Final answer
    x = 398,536.49

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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.