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Finding the Fourth Proportional to 704,481.71, 972,187.65 and 382,194.11

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Solution

The fourth proportional to 704,481.71, 972,187.65 and 382,194.11 is: 527,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,481.71 : 972,187.65 = 382,194.11 : x
  2. Step 2: Convert to fraction form
    704,481.71/972,187.65 = 382,194.11/x
  3. Step 3: Cross multiply
    704,481.71x = 972,187.65 × 382,194.11
  4. Step 4: Simplify right side
    704,481.71x = 371,564,396,075.21
  5. Step 5: Solve for x
    x = 371,564,396,075.21/704,481.71
  6. Step 6: Final answer
    x = 527,429.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.