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Finding the Fourth Proportional to 481,524.52, 664,283.22 and 311,813.32

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Solution

The fourth proportional to 481,524.52, 664,283.22 and 311,813.32 is: 430,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,524.52 : 664,283.22 = 311,813.32 : x
  2. Step 2: Convert to fraction form
    481,524.52/664,283.22 = 311,813.32/x
  3. Step 3: Cross multiply
    481,524.52x = 664,283.22 × 311,813.32
  4. Step 4: Simplify right side
    481,524.52x = 207,132,356,248.49
  5. Step 5: Solve for x
    x = 207,132,356,248.49/481,524.52
  6. Step 6: Final answer
    x = 430,159.52

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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.