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Finding the Fourth Proportional to 634,393.32, 875,474.82 and 347,896.20

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Solution

The fourth proportional to 634,393.32, 875,474.82 and 347,896.20 is: 480,103.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,393.32 : 875,474.82 = 347,896.20 : x
  2. Step 2: Convert to fraction form
    634,393.32/875,474.82 = 347,896.20/x
  3. Step 3: Cross multiply
    634,393.32x = 875,474.82 × 347,896.20
  4. Step 4: Simplify right side
    634,393.32x = 304,574,363,073.68
  5. Step 5: Solve for x
    x = 304,574,363,073.68/634,393.32
  6. Step 6: Final answer
    x = 480,103.36

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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.