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Finding the Fourth Proportional to 516,892.17, 774,548.85 and 217,208.93

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Solution

The fourth proportional to 516,892.17, 774,548.85 and 217,208.93 is: 325,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,892.17 : 774,548.85 = 217,208.93 : x
  2. Step 2: Convert to fraction form
    516,892.17/774,548.85 = 217,208.93/x
  3. Step 3: Cross multiply
    516,892.17x = 774,548.85 × 217,208.93
  4. Step 4: Simplify right side
    516,892.17x = 168,238,923,068.49
  5. Step 5: Solve for x
    x = 168,238,923,068.49/516,892.17
  6. Step 6: Final answer
    x = 325,481.66

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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.