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Finding the Fourth Proportional to 1,132.07, 1,696.47 and 555.35

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Solution

The fourth proportional to 1,132.07, 1,696.47 and 555.35 is: 832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.07 : 1,696.47 = 555.35 : x
  2. Step 2: Convert to fraction form
    1,132.07/1,696.47 = 555.35/x
  3. Step 3: Cross multiply
    1,132.07x = 1,696.47 × 555.35
  4. Step 4: Simplify right side
    1,132.07x = 942,134.61
  5. Step 5: Solve for x
    x = 942,134.61/1,132.07
  6. Step 6: Final answer
    x = 832.22

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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.