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Finding the Fourth Proportional to 577,074.61, 796,404.18 and 318,946.02

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Solution

The fourth proportional to 577,074.61, 796,404.18 and 318,946.02 is: 440,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,074.61 : 796,404.18 = 318,946.02 : x
  2. Step 2: Convert to fraction form
    577,074.61/796,404.18 = 318,946.02/x
  3. Step 3: Cross multiply
    577,074.61x = 796,404.18 × 318,946.02
  4. Step 4: Simplify right side
    577,074.61x = 254,009,943,522.36
  5. Step 5: Solve for x
    x = 254,009,943,522.36/577,074.61
  6. Step 6: Final answer
    x = 440,168.29

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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.