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Finding the Fourth Proportional to 662,602.70, 914,366.78 and 404,910.54

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Solution

The fourth proportional to 662,602.70, 914,366.78 and 404,910.54 is: 558,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,602.70 : 914,366.78 = 404,910.54 : x
  2. Step 2: Convert to fraction form
    662,602.70/914,366.78 = 404,910.54/x
  3. Step 3: Cross multiply
    662,602.70x = 914,366.78 × 404,910.54
  4. Step 4: Simplify right side
    662,602.70x = 370,236,746,647.86
  5. Step 5: Solve for x
    x = 370,236,746,647.86/662,602.70
  6. Step 6: Final answer
    x = 558,761.30

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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.