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Finding the Fourth Proportional to 304,061.99, 455,899.79 and 266,697.09

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Solution

The fourth proportional to 304,061.99, 455,899.79 and 266,697.09 is: 399,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,061.99 : 455,899.79 = 266,697.09 : x
  2. Step 2: Convert to fraction form
    304,061.99/455,899.79 = 266,697.09/x
  3. Step 3: Cross multiply
    304,061.99x = 455,899.79 × 266,697.09
  4. Step 4: Simplify right side
    304,061.99x = 121,587,147,991.35
  5. Step 5: Solve for x
    x = 121,587,147,991.35/304,061.99
  6. Step 6: Final answer
    x = 399,876.19

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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.