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Finding the Fourth Proportional to 325,064.68, 487,643.67 and 100,444.72

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Solution

The fourth proportional to 325,064.68, 487,643.67 and 100,444.72 is: 150,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,064.68 : 487,643.67 = 100,444.72 : x
  2. Step 2: Convert to fraction form
    325,064.68/487,643.67 = 100,444.72/x
  3. Step 3: Cross multiply
    325,064.68x = 487,643.67 × 100,444.72
  4. Step 4: Simplify right side
    325,064.68x = 48,981,231,892.92
  5. Step 5: Solve for x
    x = 48,981,231,892.92/325,064.68
  6. Step 6: Final answer
    x = 150,681.49

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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.