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Finding the Fourth Proportional to 580,655.86, 870,644.78 and 225,254.58

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Solution

The fourth proportional to 580,655.86, 870,644.78 and 225,254.58 is: 337,750.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,655.86 : 870,644.78 = 225,254.58 : x
  2. Step 2: Convert to fraction form
    580,655.86/870,644.78 = 225,254.58/x
  3. Step 3: Cross multiply
    580,655.86x = 870,644.78 × 225,254.58
  4. Step 4: Simplify right side
    580,655.86x = 196,116,724,248.09
  5. Step 5: Solve for x
    x = 196,116,724,248.09/580,655.86
  6. Step 6: Final answer
    x = 337,750.36

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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.