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Finding the Fourth Proportional to 483,039.40, 724,340.40 and 183,420.40

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Solution

The fourth proportional to 483,039.40, 724,340.40 and 183,420.40 is: 275,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,039.40 : 724,340.40 = 183,420.40 : x
  2. Step 2: Convert to fraction form
    483,039.40/724,340.40 = 183,420.40/x
  3. Step 3: Cross multiply
    483,039.40x = 724,340.40 × 183,420.40
  4. Step 4: Simplify right side
    483,039.40x = 132,858,805,904.16
  5. Step 5: Solve for x
    x = 132,858,805,904.16/483,039.40
  6. Step 6: Final answer
    x = 275,047.55

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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.