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Finding the Fourth Proportional to 907,879.20, 1,359,361.20 and 711,271.20

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Solution

The fourth proportional to 907,879.20, 1,359,361.20 and 711,271.20 is: 1,064,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,879.20 : 1,359,361.20 = 711,271.20 : x
  2. Step 2: Convert to fraction form
    907,879.20/1,359,361.20 = 711,271.20/x
  3. Step 3: Cross multiply
    907,879.20x = 1,359,361.20 × 711,271.20
  4. Step 4: Simplify right side
    907,879.20x = 966,874,471,957.44
  5. Step 5: Solve for x
    x = 966,874,471,957.44/907,879.20
  6. Step 6: Final answer
    x = 1,064,981.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.