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Finding the Fourth Proportional to 577,071.74, 796,400.24 and 318,943.13

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Solution

The fourth proportional to 577,071.74, 796,400.24 and 318,943.13 is: 440,164.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,071.74 : 796,400.24 = 318,943.13 : x
  2. Step 2: Convert to fraction form
    577,071.74/796,400.24 = 318,943.13/x
  3. Step 3: Cross multiply
    577,071.74x = 796,400.24 × 318,943.13
  4. Step 4: Simplify right side
    577,071.74x = 254,006,385,674.64
  5. Step 5: Solve for x
    x = 254,006,385,674.64/577,071.74
  6. Step 6: Final answer
    x = 440,164.31

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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.