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Finding the Fourth Proportional to 533,738.82, 736,486.82 and 318,833.26

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Solution

The fourth proportional to 533,738.82, 736,486.82 and 318,833.26 is: 439,946.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,738.82 : 736,486.82 = 318,833.26 : x
  2. Step 2: Convert to fraction form
    533,738.82/736,486.82 = 318,833.26/x
  3. Step 3: Cross multiply
    533,738.82x = 736,486.82 × 318,833.26
  4. Step 4: Simplify right side
    533,738.82x = 234,816,493,767.63
  5. Step 5: Solve for x
    x = 234,816,493,767.63/533,738.82
  6. Step 6: Final answer
    x = 439,946.44

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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.