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Finding the Fourth Proportional to 1,360.94, 2,041.35 and 483.43

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Solution

The fourth proportional to 1,360.94, 2,041.35 and 483.43 is: 725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.94 : 2,041.35 = 483.43 : x
  2. Step 2: Convert to fraction form
    1,360.94/2,041.35 = 483.43/x
  3. Step 3: Cross multiply
    1,360.94x = 2,041.35 × 483.43
  4. Step 4: Simplify right side
    1,360.94x = 986,849.83
  5. Step 5: Solve for x
    x = 986,849.83/1,360.94
  6. Step 6: Final answer
    x = 725.12

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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.