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Finding the Fourth Proportional to 616,008.20, 923,321.10 and 349,896.20

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Solution

The fourth proportional to 616,008.20, 923,321.10 and 349,896.20 is: 524,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,008.20 : 923,321.10 = 349,896.20 : x
  2. Step 2: Convert to fraction form
    616,008.20/923,321.10 = 349,896.20/x
  3. Step 3: Cross multiply
    616,008.20x = 923,321.10 × 349,896.20
  4. Step 4: Simplify right side
    616,008.20x = 323,066,544,269.82
  5. Step 5: Solve for x
    x = 323,066,544,269.82/616,008.20
  6. Step 6: Final answer
    x = 524,451.69

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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.