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Finding the Fourth Proportional to 875,120, 1,312,901.40 and 244,033.88

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Solution

The fourth proportional to 875,120, 1,312,901.40 and 244,033.88 is: 366,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,120 : 1,312,901.40 = 244,033.88 : x
  2. Step 2: Convert to fraction form
    875,120/1,312,901.40 = 244,033.88/x
  3. Step 3: Cross multiply
    875,120x = 1,312,901.40 × 244,033.88
  4. Step 4: Simplify right side
    875,120x = 320,392,422,699.43
  5. Step 5: Solve for x
    x = 320,392,422,699.43/875,120
  6. Step 6: Final answer
    x = 366,112.56

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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.