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Finding the Fourth Proportional to 1,497.96, 2,066.72 and 908.28

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Solution

The fourth proportional to 1,497.96, 2,066.72 and 908.28 is: 1,253.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.96 : 2,066.72 = 908.28 : x
  2. Step 2: Convert to fraction form
    1,497.96/2,066.72 = 908.28/x
  3. Step 3: Cross multiply
    1,497.96x = 2,066.72 × 908.28
  4. Step 4: Simplify right side
    1,497.96x = 1,877,155.90
  5. Step 5: Solve for x
    x = 1,877,155.90/1,497.96
  6. Step 6: Final answer
    x = 1,253.14

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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.