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Finding the Fourth Proportional to 704,870.39, 972,722.07 and 382,580.48

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Solution

The fourth proportional to 704,870.39, 972,722.07 and 382,580.48 is: 527,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,870.39 : 972,722.07 = 382,580.48 : x
  2. Step 2: Convert to fraction form
    704,870.39/972,722.07 = 382,580.48/x
  3. Step 3: Cross multiply
    704,870.39x = 972,722.07 × 382,580.48
  4. Step 4: Simplify right side
    704,870.39x = 372,144,471,583.58
  5. Step 5: Solve for x
    x = 372,144,471,583.58/704,870.39
  6. Step 6: Final answer
    x = 527,961.56

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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.