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Finding the Fourth Proportional to 573,625.02, 791,603.18 and 318,970.74

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Solution

The fourth proportional to 573,625.02, 791,603.18 and 318,970.74 is: 440,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,625.02 : 791,603.18 = 318,970.74 : x
  2. Step 2: Convert to fraction form
    573,625.02/791,603.18 = 318,970.74/x
  3. Step 3: Cross multiply
    573,625.02x = 791,603.18 × 318,970.74
  4. Step 4: Simplify right side
    573,625.02x = 252,498,252,110.95
  5. Step 5: Solve for x
    x = 252,498,252,110.95/573,625.02
  6. Step 6: Final answer
    x = 440,179.98

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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.