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Finding the Fourth Proportional to 835.16, 1,152.96 and 503.66

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Solution

The fourth proportional to 835.16, 1,152.96 and 503.66 is: 695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.16 : 1,152.96 = 503.66 : x
  2. Step 2: Convert to fraction form
    835.16/1,152.96 = 503.66/x
  3. Step 3: Cross multiply
    835.16x = 1,152.96 × 503.66
  4. Step 4: Simplify right side
    835.16x = 580,699.83
  5. Step 5: Solve for x
    x = 580,699.83/835.16
  6. Step 6: Final answer
    x = 695.32

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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.