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Finding the Fourth Proportional to 322,051.40, 483,077.10 and 203,856.20

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Solution

The fourth proportional to 322,051.40, 483,077.10 and 203,856.20 is: 305,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,051.40 : 483,077.10 = 203,856.20 : x
  2. Step 2: Convert to fraction form
    322,051.40/483,077.10 = 203,856.20/x
  3. Step 3: Cross multiply
    322,051.40x = 483,077.10 × 203,856.20
  4. Step 4: Simplify right side
    322,051.40x = 98,478,261,913.02
  5. Step 5: Solve for x
    x = 98,478,261,913.02/322,051.40
  6. Step 6: Final answer
    x = 305,784.30

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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.