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Finding the Fourth Proportional to 980,338.78, 1,352,840.52 and 544,744.88

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Solution

The fourth proportional to 980,338.78, 1,352,840.52 and 544,744.88 is: 751,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,338.78 : 1,352,840.52 = 544,744.88 : x
  2. Step 2: Convert to fraction form
    980,338.78/1,352,840.52 = 544,744.88/x
  3. Step 3: Cross multiply
    980,338.78x = 1,352,840.52 × 544,744.88
  4. Step 4: Simplify right side
    980,338.78x = 736,952,946,726.54
  5. Step 5: Solve for x
    x = 736,952,946,726.54/980,338.78
  6. Step 6: Final answer
    x = 751,732.93

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1.5x scale

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.