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Finding the Fourth Proportional to 569,724.76, 784,420.50 and 501,695.56

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Solution

The fourth proportional to 569,724.76, 784,420.50 and 501,695.56 is: 690,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,724.76 : 784,420.50 = 501,695.56 : x
  2. Step 2: Convert to fraction form
    569,724.76/784,420.50 = 501,695.56/x
  3. Step 3: Cross multiply
    569,724.76x = 784,420.50 × 501,695.56
  4. Step 4: Simplify right side
    569,724.76x = 393,540,282,022.98
  5. Step 5: Solve for x
    x = 393,540,282,022.98/569,724.76
  6. Step 6: Final answer
    x = 690,755.10

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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.