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Finding the Fourth Proportional to 1,315,471.04, 1,815,351.64 and 711,859.04

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Solution

The fourth proportional to 1,315,471.04, 1,815,351.64 and 711,859.04 is: 982,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,471.04 : 1,815,351.64 = 711,859.04 : x
  2. Step 2: Convert to fraction form
    1,315,471.04/1,815,351.64 = 711,859.04/x
  3. Step 3: Cross multiply
    1,315,471.04x = 1,815,351.64 × 711,859.04
  4. Step 4: Simplify right side
    1,315,471.04x = 1,292,274,475,712.83
  5. Step 5: Solve for x
    x = 1,292,274,475,712.83/1,315,471.04
  6. Step 6: Final answer
    x = 982,366.34

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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.