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Finding the Fourth Proportional to 1,062.76, 1,467.10 and 670.36

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Solution

The fourth proportional to 1,062.76, 1,467.10 and 670.36 is: 925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.76 : 1,467.10 = 670.36 : x
  2. Step 2: Convert to fraction form
    1,062.76/1,467.10 = 670.36/x
  3. Step 3: Cross multiply
    1,062.76x = 1,467.10 × 670.36
  4. Step 4: Simplify right side
    1,062.76x = 983,485.16
  5. Step 5: Solve for x
    x = 983,485.16/1,062.76
  6. Step 6: Final answer
    x = 925.41

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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.