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Finding the Fourth Proportional to 1,060.64, 1,464.74 and 874.76

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Solution

The fourth proportional to 1,060.64, 1,464.74 and 874.76 is: 1,208.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.64 : 1,464.74 = 874.76 : x
  2. Step 2: Convert to fraction form
    1,060.64/1,464.74 = 874.76/x
  3. Step 3: Cross multiply
    1,060.64x = 1,464.74 × 874.76
  4. Step 4: Simplify right side
    1,060.64x = 1,281,295.96
  5. Step 5: Solve for x
    x = 1,281,295.96/1,060.64
  6. Step 6: Final answer
    x = 1,208.04

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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.