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Finding the Fourth Proportional to 578,897.60, 798,869.94 and 324,257.90

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Solution

The fourth proportional to 578,897.60, 798,869.94 and 324,257.90 is: 447,471.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,897.60 : 798,869.94 = 324,257.90 : x
  2. Step 2: Convert to fraction form
    578,897.60/798,869.94 = 324,257.90/x
  3. Step 3: Cross multiply
    578,897.60x = 798,869.94 × 324,257.90
  4. Step 4: Simplify right side
    578,897.60x = 259,039,889,117.53
  5. Step 5: Solve for x
    x = 259,039,889,117.53/578,897.60
  6. Step 6: Final answer
    x = 447,471.00

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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.