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Finding the Fourth Proportional to 2,922.78, 4,384.88 and 975.14

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Solution

The fourth proportional to 2,922.78, 4,384.88 and 975.14 is: 1,462.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.78 : 4,384.88 = 975.14 : x
  2. Step 2: Convert to fraction form
    2,922.78/4,384.88 = 975.14/x
  3. Step 3: Cross multiply
    2,922.78x = 4,384.88 × 975.14
  4. Step 4: Simplify right side
    2,922.78x = 4,275,845.08
  5. Step 5: Solve for x
    x = 4,275,845.08/2,922.78
  6. Step 6: Final answer
    x = 1,462.94

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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.