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Finding the Fourth Proportional to 539,650.80, 744,698.61 and 297,928.26

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Solution

The fourth proportional to 539,650.80, 744,698.61 and 297,928.26 is: 411,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,650.80 : 744,698.61 = 297,928.26 : x
  2. Step 2: Convert to fraction form
    539,650.80/744,698.61 = 297,928.26/x
  3. Step 3: Cross multiply
    539,650.80x = 744,698.61 × 297,928.26
  4. Step 4: Simplify right side
    539,650.80x = 221,866,761,101.72
  5. Step 5: Solve for x
    x = 221,866,761,101.72/539,650.80
  6. Step 6: Final answer
    x = 411,130.24

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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.