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Finding the Fourth Proportional to 509,573.10, 764,432.55 and 154,614.90

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Solution

The fourth proportional to 509,573.10, 764,432.55 and 154,614.90 is: 231,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,573.10 : 764,432.55 = 154,614.90 : x
  2. Step 2: Convert to fraction form
    509,573.10/764,432.55 = 154,614.90/x
  3. Step 3: Cross multiply
    509,573.10x = 764,432.55 × 154,614.90
  4. Step 4: Simplify right side
    509,573.10x = 118,192,662,275.00
  5. Step 5: Solve for x
    x = 118,192,662,275.00/509,573.10
  6. Step 6: Final answer
    x = 231,944.47

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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.