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Finding the Fourth Proportional to 603,935.20, 905,899.56 and 154,655.20

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Solution

The fourth proportional to 603,935.20, 905,899.56 and 154,655.20 is: 231,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,935.20 : 905,899.56 = 154,655.20 : x
  2. Step 2: Convert to fraction form
    603,935.20/905,899.56 = 154,655.20/x
  3. Step 3: Cross multiply
    603,935.20x = 905,899.56 × 154,655.20
  4. Step 4: Simplify right side
    603,935.20x = 140,102,077,631.71
  5. Step 5: Solve for x
    x = 140,102,077,631.71/603,935.20
  6. Step 6: Final answer
    x = 231,981.97

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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.