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Finding the Fourth Proportional to 459,995.66, 689,993.29 and 123,027.56

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Solution

The fourth proportional to 459,995.66, 689,993.29 and 123,027.56 is: 184,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,995.66 : 689,993.29 = 123,027.56 : x
  2. Step 2: Convert to fraction form
    459,995.66/689,993.29 = 123,027.56/x
  3. Step 3: Cross multiply
    459,995.66x = 689,993.29 × 123,027.56
  4. Step 4: Simplify right side
    459,995.66x = 84,888,189,484.34
  5. Step 5: Solve for x
    x = 84,888,189,484.34/459,995.66
  6. Step 6: Final answer
    x = 184,541.28

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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.