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Finding the Fourth Proportional to 1,495.08, 2,062.95 and 831.92

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Solution

The fourth proportional to 1,495.08, 2,062.95 and 831.92 is: 1,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.08 : 2,062.95 = 831.92 : x
  2. Step 2: Convert to fraction form
    1,495.08/2,062.95 = 831.92/x
  3. Step 3: Cross multiply
    1,495.08x = 2,062.95 × 831.92
  4. Step 4: Simplify right side
    1,495.08x = 1,716,199.05
  5. Step 5: Solve for x
    x = 1,716,199.05/1,495.08
  6. Step 6: Final answer
    x = 1,147.90

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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.