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Finding the Fourth Proportional to 571,697.66, 857,366.58 and 206,912.18

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Solution

The fourth proportional to 571,697.66, 857,366.58 and 206,912.18 is: 310,303.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,697.66 : 857,366.58 = 206,912.18 : x
  2. Step 2: Convert to fraction form
    571,697.66/857,366.58 = 206,912.18/x
  3. Step 3: Cross multiply
    571,697.66x = 857,366.58 × 206,912.18
  4. Step 4: Simplify right side
    571,697.66x = 177,399,588,126.94
  5. Step 5: Solve for x
    x = 177,399,588,126.94/571,697.66
  6. Step 6: Final answer
    x = 310,303.16

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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.