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Finding the Fourth Proportional to 309,813.46, 427,301.53 and 224,093.99

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Solution

The fourth proportional to 309,813.46, 427,301.53 and 224,093.99 is: 309,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,813.46 : 427,301.53 = 224,093.99 : x
  2. Step 2: Convert to fraction form
    309,813.46/427,301.53 = 224,093.99/x
  3. Step 3: Cross multiply
    309,813.46x = 427,301.53 × 224,093.99
  4. Step 4: Simplify right side
    309,813.46x = 95,755,705,298.82
  5. Step 5: Solve for x
    x = 95,755,705,298.82/309,813.46
  6. Step 6: Final answer
    x = 309,075.36

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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.