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Finding the Fourth Proportional to 662,649.63, 914,431.38 and 404,957.54

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Solution

The fourth proportional to 662,649.63, 914,431.38 and 404,957.54 is: 558,826.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,649.63 : 914,431.38 = 404,957.54 : x
  2. Step 2: Convert to fraction form
    662,649.63/914,431.38 = 404,957.54/x
  3. Step 3: Cross multiply
    662,649.63x = 914,431.38 × 404,957.54
  4. Step 4: Simplify right side
    662,649.63x = 370,305,882,911.09
  5. Step 5: Solve for x
    x = 370,305,882,911.09/662,649.63
  6. Step 6: Final answer
    x = 558,826.06

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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.