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Finding the Fourth Proportional to 665,104.30, 997,656.45 and 654,606.70

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Solution

The fourth proportional to 665,104.30, 997,656.45 and 654,606.70 is: 981,910.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,104.30 : 997,656.45 = 654,606.70 : x
  2. Step 2: Convert to fraction form
    665,104.30/997,656.45 = 654,606.70/x
  3. Step 3: Cross multiply
    665,104.30x = 997,656.45 × 654,606.70
  4. Step 4: Simplify right side
    665,104.30x = 653,072,596,468.22
  5. Step 5: Solve for x
    x = 653,072,596,468.22/665,104.30
  6. Step 6: Final answer
    x = 981,910.05

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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.