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Finding the Fourth Proportional to 571,171.17, 855,822.11 and 345,849.15

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Solution

The fourth proportional to 571,171.17, 855,822.11 and 345,849.15 is: 518,207.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,171.17 : 855,822.11 = 345,849.15 : x
  2. Step 2: Convert to fraction form
    571,171.17/855,822.11 = 345,849.15/x
  3. Step 3: Cross multiply
    571,171.17x = 855,822.11 × 345,849.15
  4. Step 4: Simplify right side
    571,171.17x = 295,985,347,565.46
  5. Step 5: Solve for x
    x = 295,985,347,565.46/571,171.17
  6. Step 6: Final answer
    x = 518,207.79

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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.