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Finding the Fourth Proportional to 1,364.68, 2,041.74 and 954.52

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Solution

The fourth proportional to 1,364.68, 2,041.74 and 954.52 is: 1,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.68 : 2,041.74 = 954.52 : x
  2. Step 2: Convert to fraction form
    1,364.68/2,041.74 = 954.52/x
  3. Step 3: Cross multiply
    1,364.68x = 2,041.74 × 954.52
  4. Step 4: Simplify right side
    1,364.68x = 1,948,881.66
  5. Step 5: Solve for x
    x = 1,948,881.66/1,364.68
  6. Step 6: Final answer
    x = 1,428.09

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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.