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Finding the Fourth Proportional to 577,316.66, 796,682.93 and 319,186.94

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Solution

The fourth proportional to 577,316.66, 796,682.93 and 319,186.94 is: 440,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,316.66 : 796,682.93 = 319,186.94 : x
  2. Step 2: Convert to fraction form
    577,316.66/796,682.93 = 319,186.94/x
  3. Step 3: Cross multiply
    577,316.66x = 796,682.93 × 319,186.94
  4. Step 4: Simplify right side
    577,316.66x = 254,290,780,997.59
  5. Step 5: Solve for x
    x = 254,290,780,997.59/577,316.66
  6. Step 6: Final answer
    x = 440,470.20

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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.