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Finding the Fourth Proportional to 3,624.42, 5,436.63 and 888.42

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Solution

The fourth proportional to 3,624.42, 5,436.63 and 888.42 is: 1,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,624.42 : 5,436.63 = 888.42 : x
  2. Step 2: Convert to fraction form
    3,624.42/5,436.63 = 888.42/x
  3. Step 3: Cross multiply
    3,624.42x = 5,436.63 × 888.42
  4. Step 4: Simplify right side
    3,624.42x = 4,830,010.82
  5. Step 5: Solve for x
    x = 4,830,010.82/3,624.42
  6. Step 6: Final answer
    x = 1,332.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.