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Finding the Fourth Proportional to 611,110.54, 843,487.56 and 417,596.58

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Solution

The fourth proportional to 611,110.54, 843,487.56 and 417,596.58 is: 576,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,110.54 : 843,487.56 = 417,596.58 : x
  2. Step 2: Convert to fraction form
    611,110.54/843,487.56 = 417,596.58/x
  3. Step 3: Cross multiply
    611,110.54x = 843,487.56 × 417,596.58
  4. Step 4: Simplify right side
    611,110.54x = 352,237,520,328.55
  5. Step 5: Solve for x
    x = 352,237,520,328.55/611,110.54
  6. Step 6: Final answer
    x = 576,389.21

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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.