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Finding the Fourth Proportional to 573,433.06, 791,364.63 and 318,788.50

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Solution

The fourth proportional to 573,433.06, 791,364.63 and 318,788.50 is: 439,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,433.06 : 791,364.63 = 318,788.50 : x
  2. Step 2: Convert to fraction form
    573,433.06/791,364.63 = 318,788.50/x
  3. Step 3: Cross multiply
    573,433.06x = 791,364.63 × 318,788.50
  4. Step 4: Simplify right side
    573,433.06x = 252,277,943,350.76
  5. Step 5: Solve for x
    x = 252,277,943,350.76/573,433.06
  6. Step 6: Final answer
    x = 439,943.14

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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.