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Finding the Fourth Proportional to 647,999.99, 894,240.54 and 361,520.13

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Solution

The fourth proportional to 647,999.99, 894,240.54 and 361,520.13 is: 498,898.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,999.99 : 894,240.54 = 361,520.13 : x
  2. Step 2: Convert to fraction form
    647,999.99/894,240.54 = 361,520.13/x
  3. Step 3: Cross multiply
    647,999.99x = 894,240.54 × 361,520.13
  4. Step 4: Simplify right side
    647,999.99x = 323,285,956,272.07
  5. Step 5: Solve for x
    x = 323,285,956,272.07/647,999.99
  6. Step 6: Final answer
    x = 498,898.09

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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.