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Finding the Fourth Proportional to 535,596.46, 739,146.21 and 320,695.45

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Solution

The fourth proportional to 535,596.46, 739,146.21 and 320,695.45 is: 442,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,596.46 : 739,146.21 = 320,695.45 : x
  2. Step 2: Convert to fraction form
    535,596.46/739,146.21 = 320,695.45/x
  3. Step 3: Cross multiply
    535,596.46x = 739,146.21 × 320,695.45
  4. Step 4: Simplify right side
    535,596.46x = 237,040,826,431.75
  5. Step 5: Solve for x
    x = 237,040,826,431.75/535,596.46
  6. Step 6: Final answer
    x = 442,573.55

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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.