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Finding the Fourth Proportional to 606,648.80, 911,722.80 and 529,666.40

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Solution

The fourth proportional to 606,648.80, 911,722.80 and 529,666.40 is: 796,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,648.80 : 911,722.80 = 529,666.40 : x
  2. Step 2: Convert to fraction form
    606,648.80/911,722.80 = 529,666.40/x
  3. Step 3: Cross multiply
    606,648.80x = 911,722.80 × 529,666.40
  4. Step 4: Simplify right side
    606,648.80x = 482,908,933,273.92
  5. Step 5: Solve for x
    x = 482,908,933,273.92/606,648.80
  6. Step 6: Final answer
    x = 796,027.18

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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.