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Finding the Fourth Proportional to 472,082.94, 708,419.64 and 191,600.18

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Solution

The fourth proportional to 472,082.94, 708,419.64 and 191,600.18 is: 287,520.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,082.94 : 708,419.64 = 191,600.18 : x
  2. Step 2: Convert to fraction form
    472,082.94/708,419.64 = 191,600.18/x
  3. Step 3: Cross multiply
    472,082.94x = 708,419.64 × 191,600.18
  4. Step 4: Simplify right side
    472,082.94x = 135,733,330,539.54
  5. Step 5: Solve for x
    x = 135,733,330,539.54/472,082.94
  6. Step 6: Final answer
    x = 287,520.09

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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.