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Finding the Fourth Proportional to 370,643.25, 511,542.59 and 234,689.84

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Solution

The fourth proportional to 370,643.25, 511,542.59 and 234,689.84 is: 323,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,643.25 : 511,542.59 = 234,689.84 : x
  2. Step 2: Convert to fraction form
    370,643.25/511,542.59 = 234,689.84/x
  3. Step 3: Cross multiply
    370,643.25x = 511,542.59 × 234,689.84
  4. Step 4: Simplify right side
    370,643.25x = 120,053,848,600.29
  5. Step 5: Solve for x
    x = 120,053,848,600.29/370,643.25
  6. Step 6: Final answer
    x = 323,906.74

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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.