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Finding the Fourth Proportional to 577,342.54, 796,557.71 and 402,908.10

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Solution

The fourth proportional to 577,342.54, 796,557.71 and 402,908.10 is: 555,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,342.54 : 796,557.71 = 402,908.10 : x
  2. Step 2: Convert to fraction form
    577,342.54/796,557.71 = 402,908.10/x
  3. Step 3: Cross multiply
    577,342.54x = 796,557.71 × 402,908.10
  4. Step 4: Simplify right side
    577,342.54x = 320,939,553,476.45
  5. Step 5: Solve for x
    x = 320,939,553,476.45/577,342.54
  6. Step 6: Final answer
    x = 555,891.05

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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.