Home / 611,821.91-844,313.46-339,914.90

Finding the Fourth Proportional to 611,821.91, 844,313.46 and 339,914.90

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Solution

The fourth proportional to 611,821.91, 844,313.46 and 339,914.90 is: 469,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,821.91 : 844,313.46 = 339,914.90 : x
  2. Step 2: Convert to fraction form
    611,821.91/844,313.46 = 339,914.90/x
  3. Step 3: Cross multiply
    611,821.91x = 844,313.46 × 339,914.90
  4. Step 4: Simplify right side
    611,821.91x = 286,994,721,102.99
  5. Step 5: Solve for x
    x = 286,994,721,102.99/611,821.91
  6. Step 6: Final answer
    x = 469,082.13

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1.5x scale

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.