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Finding the Fourth Proportional to 533,738.32, 736,486.13 and 318,832.76

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Solution

The fourth proportional to 533,738.32, 736,486.13 and 318,832.76 is: 439,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,738.32 : 736,486.13 = 318,832.76 : x
  2. Step 2: Convert to fraction form
    533,738.32/736,486.13 = 318,832.76/x
  3. Step 3: Cross multiply
    533,738.32x = 736,486.13 × 318,832.76
  4. Step 4: Simplify right side
    533,738.32x = 234,815,905,529.62
  5. Step 5: Solve for x
    x = 234,815,905,529.62/533,738.32
  6. Step 6: Final answer
    x = 439,945.75

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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.