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Finding the Fourth Proportional to 609,789, 841,508.82 and 341,517

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Solution

The fourth proportional to 609,789, 841,508.82 and 341,517 is: 471,293.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,789 : 841,508.82 = 341,517 : x
  2. Step 2: Convert to fraction form
    609,789/841,508.82 = 341,517/x
  3. Step 3: Cross multiply
    609,789x = 841,508.82 × 341,517
  4. Step 4: Simplify right side
    609,789x = 287,389,567,679.94
  5. Step 5: Solve for x
    x = 287,389,567,679.94/609,789
  6. Step 6: Final answer
    x = 471,293.46

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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.