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Finding the Fourth Proportional to 706,191.87, 974,540.73 and 400,325.95

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Solution

The fourth proportional to 706,191.87, 974,540.73 and 400,325.95 is: 552,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,191.87 : 974,540.73 = 400,325.95 : x
  2. Step 2: Convert to fraction form
    706,191.87/974,540.73 = 400,325.95/x
  3. Step 3: Cross multiply
    706,191.87x = 974,540.73 × 400,325.95
  4. Step 4: Simplify right side
    706,191.87x = 390,133,943,550.94
  5. Step 5: Solve for x
    x = 390,133,943,550.94/706,191.87
  6. Step 6: Final answer
    x = 552,447.51

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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.