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Finding the Fourth Proportional to 577,356.92, 796,738.40 and 319,227.06

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Solution

The fourth proportional to 577,356.92, 796,738.40 and 319,227.06 is: 440,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,356.92 : 796,738.40 = 319,227.06 : x
  2. Step 2: Convert to fraction form
    577,356.92/796,738.40 = 319,227.06/x
  3. Step 3: Cross multiply
    577,356.92x = 796,738.40 × 319,227.06
  4. Step 4: Simplify right side
    577,356.92x = 254,340,455,424.97
  5. Step 5: Solve for x
    x = 254,340,455,424.97/577,356.92
  6. Step 6: Final answer
    x = 440,525.52

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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.