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Finding the Fourth Proportional to 539,610.51, 744,642.95 and 297,887.88

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Solution

The fourth proportional to 539,610.51, 744,642.95 and 297,887.88 is: 411,074.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,610.51 : 744,642.95 = 297,887.88 : x
  2. Step 2: Convert to fraction form
    539,610.51/744,642.95 = 297,887.88/x
  3. Step 3: Cross multiply
    539,610.51x = 744,642.95 × 297,887.88
  4. Step 4: Simplify right side
    539,610.51x = 221,820,108,243.01
  5. Step 5: Solve for x
    x = 221,820,108,243.01/539,610.51
  6. Step 6: Final answer
    x = 411,074.48

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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.