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Finding the Fourth Proportional to 1,062.75, 1,592.94 and 477.64

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Solution

The fourth proportional to 1,062.75, 1,592.94 and 477.64 is: 715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.75 : 1,592.94 = 477.64 : x
  2. Step 2: Convert to fraction form
    1,062.75/1,592.94 = 477.64/x
  3. Step 3: Cross multiply
    1,062.75x = 1,592.94 × 477.64
  4. Step 4: Simplify right side
    1,062.75x = 760,851.86
  5. Step 5: Solve for x
    x = 760,851.86/1,062.75
  6. Step 6: Final answer
    x = 715.93

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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.