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Finding the Fourth Proportional to 585,706.11, 878,669.15 and 265,880.43

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Solution

The fourth proportional to 585,706.11, 878,669.15 and 265,880.43 is: 398,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,706.11 : 878,669.15 = 265,880.43 : x
  2. Step 2: Convert to fraction form
    585,706.11/878,669.15 = 265,880.43/x
  3. Step 3: Cross multiply
    585,706.11x = 878,669.15 × 265,880.43
  4. Step 4: Simplify right side
    585,706.11x = 233,620,929,567.76
  5. Step 5: Solve for x
    x = 233,620,929,567.76/585,706.11
  6. Step 6: Final answer
    x = 398,870.57

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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.