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Finding the Fourth Proportional to 1,039.26, 1,433.93 and 597.07

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Solution

The fourth proportional to 1,039.26, 1,433.93 and 597.07 is: 823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.26 : 1,433.93 = 597.07 : x
  2. Step 2: Convert to fraction form
    1,039.26/1,433.93 = 597.07/x
  3. Step 3: Cross multiply
    1,039.26x = 1,433.93 × 597.07
  4. Step 4: Simplify right side
    1,039.26x = 856,156.59
  5. Step 5: Solve for x
    x = 856,156.59/1,039.26
  6. Step 6: Final answer
    x = 823.81

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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.