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Finding the Fourth Proportional to 873,648.83, 1,310,472.23 and 274,662.34

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Solution

The fourth proportional to 873,648.83, 1,310,472.23 and 274,662.34 is: 411,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,648.83 : 1,310,472.23 = 274,662.34 : x
  2. Step 2: Convert to fraction form
    873,648.83/1,310,472.23 = 274,662.34/x
  3. Step 3: Cross multiply
    873,648.83x = 1,310,472.23 × 274,662.34
  4. Step 4: Simplify right side
    873,648.83x = 359,937,361,271.15
  5. Step 5: Solve for x
    x = 359,937,361,271.15/873,648.83
  6. Step 6: Final answer
    x = 411,993.18

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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.