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Finding the Fourth Proportional to 887,763.94, 1,329,718.94 and 545,167.68

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Solution

The fourth proportional to 887,763.94, 1,329,718.94 and 545,167.68 is: 816,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,763.94 : 1,329,718.94 = 545,167.68 : x
  2. Step 2: Convert to fraction form
    887,763.94/1,329,718.94 = 545,167.68/x
  3. Step 3: Cross multiply
    887,763.94x = 1,329,718.94 × 545,167.68
  4. Step 4: Simplify right side
    887,763.94x = 724,919,791,383.62
  5. Step 5: Solve for x
    x = 724,919,791,383.62/887,763.94
  6. Step 6: Final answer
    x = 816,568.18

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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.