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Finding the Fourth Proportional to 483,909.02, 724,444.09 and 339,313.46

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Solution

The fourth proportional to 483,909.02, 724,444.09 and 339,313.46 is: 507,974.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,909.02 : 724,444.09 = 339,313.46 : x
  2. Step 2: Convert to fraction form
    483,909.02/724,444.09 = 339,313.46/x
  3. Step 3: Cross multiply
    483,909.02x = 724,444.09 × 339,313.46
  4. Step 4: Simplify right side
    483,909.02x = 245,813,626,283.95
  5. Step 5: Solve for x
    x = 245,813,626,283.95/483,909.02
  6. Step 6: Final answer
    x = 507,974.88

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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.