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Finding the Fourth Proportional to 656,602.83, 906,112.44 and 354,796.83

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Solution

The fourth proportional to 656,602.83, 906,112.44 and 354,796.83 is: 489,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,602.83 : 906,112.44 = 354,796.83 : x
  2. Step 2: Convert to fraction form
    656,602.83/906,112.44 = 354,796.83/x
  3. Step 3: Cross multiply
    656,602.83x = 906,112.44 × 354,796.83
  4. Step 4: Simplify right side
    656,602.83x = 321,485,821,335.57
  5. Step 5: Solve for x
    x = 321,485,821,335.57/656,602.83
  6. Step 6: Final answer
    x = 489,619.91

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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.