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Finding the Fourth Proportional to 341,643.32, 471,471.31 and 188,685.34

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Solution

The fourth proportional to 341,643.32, 471,471.31 and 188,685.34 is: 260,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,643.32 : 471,471.31 = 188,685.34 : x
  2. Step 2: Convert to fraction form
    341,643.32/471,471.31 = 188,685.34/x
  3. Step 3: Cross multiply
    341,643.32x = 471,471.31 × 188,685.34
  4. Step 4: Simplify right side
    341,643.32x = 88,959,724,427.60
  5. Step 5: Solve for x
    x = 88,959,724,427.60/341,643.32
  6. Step 6: Final answer
    x = 260,387.72

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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.