Home / 630,108.27-869,616.83-385,236.71

Finding the Fourth Proportional to 630,108.27, 869,616.83 and 385,236.71

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Solution

The fourth proportional to 630,108.27, 869,616.83 and 385,236.71 is: 531,667.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,108.27 : 869,616.83 = 385,236.71 : x
  2. Step 2: Convert to fraction form
    630,108.27/869,616.83 = 385,236.71/x
  3. Step 3: Cross multiply
    630,108.27x = 869,616.83 × 385,236.71
  4. Step 4: Simplify right side
    630,108.27x = 335,008,320,275.56
  5. Step 5: Solve for x
    x = 335,008,320,275.56/630,108.27
  6. Step 6: Final answer
    x = 531,667.87

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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.