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Finding the Fourth Proportional to 1,813,712.90, 2,722,664.55 and 973,904.90

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Solution

The fourth proportional to 1,813,712.90, 2,722,664.55 and 973,904.90 is: 1,461,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,712.90 : 2,722,664.55 = 973,904.90 : x
  2. Step 2: Convert to fraction form
    1,813,712.90/2,722,664.55 = 973,904.90/x
  3. Step 3: Cross multiply
    1,813,712.90x = 2,722,664.55 × 973,904.90
  4. Step 4: Simplify right side
    1,813,712.90x = 2,651,616,346,301.30
  5. Step 5: Solve for x
    x = 2,651,616,346,301.30/1,813,712.90
  6. Step 6: Final answer
    x = 1,461,982.40

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Why These Related Problems?

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