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Finding the Fourth Proportional to 662,657.31, 914,443.08 and 404,965.37

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Solution

The fourth proportional to 662,657.31, 914,443.08 and 404,965.37 is: 558,837.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,657.31 : 914,443.08 = 404,965.37 : x
  2. Step 2: Convert to fraction form
    662,657.31/914,443.08 = 404,965.37/x
  3. Step 3: Cross multiply
    662,657.31x = 914,443.08 × 404,965.37
  4. Step 4: Simplify right side
    662,657.31x = 370,317,781,003.63
  5. Step 5: Solve for x
    x = 370,317,781,003.63/662,657.31
  6. Step 6: Final answer
    x = 558,837.54

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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.