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Finding the Fourth Proportional to 577,495.42, 796,948.96 and 319,359.02

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Solution

The fourth proportional to 577,495.42, 796,948.96 and 319,359.02 is: 440,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,495.42 : 796,948.96 = 319,359.02 : x
  2. Step 2: Convert to fraction form
    577,495.42/796,948.96 = 319,359.02/x
  3. Step 3: Cross multiply
    577,495.42x = 796,948.96 × 319,359.02
  4. Step 4: Simplify right side
    577,495.42x = 254,512,840,049.59
  5. Step 5: Solve for x
    x = 254,512,840,049.59/577,495.42
  6. Step 6: Final answer
    x = 440,718.37

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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.