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Finding the Fourth Proportional to 609,573.40, 913,917.12 and 254,688.91

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Solution

The fourth proportional to 609,573.40, 913,917.12 and 254,688.91 is: 381,848.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,573.40 : 913,917.12 = 254,688.91 : x
  2. Step 2: Convert to fraction form
    609,573.40/913,917.12 = 254,688.91/x
  3. Step 3: Cross multiply
    609,573.40x = 913,917.12 × 254,688.91
  4. Step 4: Simplify right side
    609,573.40x = 232,764,555,123.14
  5. Step 5: Solve for x
    x = 232,764,555,123.14/609,573.40
  6. Step 6: Final answer
    x = 381,848.28

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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.