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Finding the Fourth Proportional to 569,723.76, 784,419.12 and 501,694.56

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Solution

The fourth proportional to 569,723.76, 784,419.12 and 501,694.56 is: 690,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,723.76 : 784,419.12 = 501,694.56 : x
  2. Step 2: Convert to fraction form
    569,723.76/784,419.12 = 501,694.56/x
  3. Step 3: Cross multiply
    569,723.76x = 784,419.12 × 501,694.56
  4. Step 4: Simplify right side
    569,723.76x = 393,538,805,263.99
  5. Step 5: Solve for x
    x = 393,538,805,263.99/569,723.76
  6. Step 6: Final answer
    x = 690,753.72

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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.