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Finding the Fourth Proportional to 614,869.87, 922,009.25 and 348,558.88

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Solution

The fourth proportional to 614,869.87, 922,009.25 and 348,558.88 is: 522,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,869.87 : 922,009.25 = 348,558.88 : x
  2. Step 2: Convert to fraction form
    614,869.87/922,009.25 = 348,558.88/x
  3. Step 3: Cross multiply
    614,869.87x = 922,009.25 × 348,558.88
  4. Step 4: Simplify right side
    614,869.87x = 321,374,511,529.64
  5. Step 5: Solve for x
    x = 321,374,511,529.64/614,869.87
  6. Step 6: Final answer
    x = 522,670.78

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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.