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Finding the Fourth Proportional to 1,497.47, 2,066.54 and 834.38

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Solution

The fourth proportional to 1,497.47, 2,066.54 and 834.38 is: 1,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.47 : 2,066.54 = 834.38 : x
  2. Step 2: Convert to fraction form
    1,497.47/2,066.54 = 834.38/x
  3. Step 3: Cross multiply
    1,497.47x = 2,066.54 × 834.38
  4. Step 4: Simplify right side
    1,497.47x = 1,724,265.14
  5. Step 5: Solve for x
    x = 1,724,265.14/1,497.47
  6. Step 6: Final answer
    x = 1,151.46

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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.