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Finding the Fourth Proportional to 611,253.99, 843,533.74 and 381,944.34

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Solution

The fourth proportional to 611,253.99, 843,533.74 and 381,944.34 is: 527,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,253.99 : 843,533.74 = 381,944.34 : x
  2. Step 2: Convert to fraction form
    611,253.99/843,533.74 = 381,944.34/x
  3. Step 3: Cross multiply
    611,253.99x = 843,533.74 × 381,944.34
  4. Step 4: Simplify right side
    611,253.99x = 322,182,937,592.03
  5. Step 5: Solve for x
    x = 322,182,937,592.03/611,253.99
  6. Step 6: Final answer
    x = 527,085.21

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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.