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Finding the Fourth Proportional to 875,996.55, 1,313,364 and 538,339.71

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Solution

The fourth proportional to 875,996.55, 1,313,364 and 538,339.71 is: 807,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,996.55 : 1,313,364 = 538,339.71 : x
  2. Step 2: Convert to fraction form
    875,996.55/1,313,364 = 538,339.71/x
  3. Step 3: Cross multiply
    875,996.55x = 1,313,364 × 538,339.71
  4. Step 4: Simplify right side
    875,996.55x = 707,035,994,884.44
  5. Step 5: Solve for x
    x = 707,035,994,884.44/875,996.55
  6. Step 6: Final answer
    x = 807,121.89

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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.