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Finding the Fourth Proportional to 385,932.28, 532,586.54 and 235,029.28

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Solution

The fourth proportional to 385,932.28, 532,586.54 and 235,029.28 is: 324,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,932.28 : 532,586.54 = 235,029.28 : x
  2. Step 2: Convert to fraction form
    385,932.28/532,586.54 = 235,029.28/x
  3. Step 3: Cross multiply
    385,932.28x = 532,586.54 × 235,029.28
  4. Step 4: Simplify right side
    385,932.28x = 125,173,431,033.89
  5. Step 5: Solve for x
    x = 125,173,431,033.89/385,932.28
  6. Step 6: Final answer
    x = 324,340.40

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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.