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Finding the Fourth Proportional to 483,612.40, 724,900.20 and 183,977.20

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Solution

The fourth proportional to 483,612.40, 724,900.20 and 183,977.20 is: 275,768.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,612.40 : 724,900.20 = 183,977.20 : x
  2. Step 2: Convert to fraction form
    483,612.40/724,900.20 = 183,977.20/x
  3. Step 3: Cross multiply
    483,612.40x = 724,900.20 × 183,977.20
  4. Step 4: Simplify right side
    483,612.40x = 133,365,109,075.44
  5. Step 5: Solve for x
    x = 133,365,109,075.44/483,612.40
  6. Step 6: Final answer
    x = 275,768.59

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1.5x scale

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.