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Finding the Fourth Proportional to 1,495.02, 2,063.14 and 831.92

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Solution

The fourth proportional to 1,495.02, 2,063.14 and 831.92 is: 1,148.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.02 : 2,063.14 = 831.92 : x
  2. Step 2: Convert to fraction form
    1,495.02/2,063.14 = 831.92/x
  3. Step 3: Cross multiply
    1,495.02x = 2,063.14 × 831.92
  4. Step 4: Simplify right side
    1,495.02x = 1,716,367.43
  5. Step 5: Solve for x
    x = 1,716,367.43/1,495.02
  6. Step 6: Final answer
    x = 1,148.06

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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.