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Finding the Fourth Proportional to 539,673.96, 744,745.86 and 297,957

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Solution

The fourth proportional to 539,673.96, 744,745.86 and 297,957 is: 411,178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,673.96 : 744,745.86 = 297,957 : x
  2. Step 2: Convert to fraction form
    539,673.96/744,745.86 = 297,957/x
  3. Step 3: Cross multiply
    539,673.96x = 744,745.86 × 297,957
  4. Step 4: Simplify right side
    539,673.96x = 221,902,242,208.02
  5. Step 5: Solve for x
    x = 221,902,242,208.02/539,673.96
  6. Step 6: Final answer
    x = 411,178.34

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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.