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Finding the Fourth Proportional to 403,856.32, 557,325.52 and 222,574.88

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Solution

The fourth proportional to 403,856.32, 557,325.52 and 222,574.88 is: 307,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,856.32 : 557,325.52 = 222,574.88 : x
  2. Step 2: Convert to fraction form
    403,856.32/557,325.52 = 222,574.88/x
  3. Step 3: Cross multiply
    403,856.32x = 557,325.52 × 222,574.88
  4. Step 4: Simplify right side
    403,856.32x = 124,046,660,734.94
  5. Step 5: Solve for x
    x = 124,046,660,734.94/403,856.32
  6. Step 6: Final answer
    x = 307,155.43

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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.