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Finding the Fourth Proportional to 505,959.16, 698,238.08 and 276,529.20

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Solution

The fourth proportional to 505,959.16, 698,238.08 and 276,529.20 is: 381,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,959.16 : 698,238.08 = 276,529.20 : x
  2. Step 2: Convert to fraction form
    505,959.16/698,238.08 = 276,529.20/x
  3. Step 3: Cross multiply
    505,959.16x = 698,238.08 × 276,529.20
  4. Step 4: Simplify right side
    505,959.16x = 193,083,217,671.94
  5. Step 5: Solve for x
    x = 193,083,217,671.94/505,959.16
  6. Step 6: Final answer
    x = 381,618.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.