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Finding the Fourth Proportional to 527,613.75, 728,106.98 and 285,894.36

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Solution

The fourth proportional to 527,613.75, 728,106.98 and 285,894.36 is: 394,534.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,613.75 : 728,106.98 = 285,894.36 : x
  2. Step 2: Convert to fraction form
    527,613.75/728,106.98 = 285,894.36/x
  3. Step 3: Cross multiply
    527,613.75x = 728,106.98 × 285,894.36
  4. Step 4: Simplify right side
    527,613.75x = 208,161,677,629.16
  5. Step 5: Solve for x
    x = 208,161,677,629.16/527,613.75
  6. Step 6: Final answer
    x = 394,534.22

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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.