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Finding the Fourth Proportional to 1,465.70, 2,199.15 and 735.08

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Solution

The fourth proportional to 1,465.70, 2,199.15 and 735.08 is: 1,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.70 : 2,199.15 = 735.08 : x
  2. Step 2: Convert to fraction form
    1,465.70/2,199.15 = 735.08/x
  3. Step 3: Cross multiply
    1,465.70x = 2,199.15 × 735.08
  4. Step 4: Simplify right side
    1,465.70x = 1,616,540.19
  5. Step 5: Solve for x
    x = 1,616,540.19/1,465.70
  6. Step 6: Final answer
    x = 1,102.92

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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.