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Finding the Fourth Proportional to 305,998.80, 459,041.40 and 95,614.80

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Solution

The fourth proportional to 305,998.80, 459,041.40 and 95,614.80 is: 143,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,998.80 : 459,041.40 = 95,614.80 : x
  2. Step 2: Convert to fraction form
    305,998.80/459,041.40 = 95,614.80/x
  3. Step 3: Cross multiply
    305,998.80x = 459,041.40 × 95,614.80
  4. Step 4: Simplify right side
    305,998.80x = 43,891,151,652.72
  5. Step 5: Solve for x
    x = 43,891,151,652.72/305,998.80
  6. Step 6: Final answer
    x = 143,435.70

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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.