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Finding the Fourth Proportional to 1,315,682.90, 1,974,215.94 and 933,895.58

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Solution

The fourth proportional to 1,315,682.90, 1,974,215.94 and 933,895.58 is: 1,401,334.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,682.90 : 1,974,215.94 = 933,895.58 : x
  2. Step 2: Convert to fraction form
    1,315,682.90/1,974,215.94 = 933,895.58/x
  3. Step 3: Cross multiply
    1,315,682.90x = 1,974,215.94 × 933,895.58
  4. Step 4: Simplify right side
    1,315,682.90x = 1,843,711,540,331.55
  5. Step 5: Solve for x
    x = 1,843,711,540,331.55/1,315,682.90
  6. Step 6: Final answer
    x = 1,401,334.27

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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.