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Finding the Fourth Proportional to 572,794.04, 790,455.78 and 318,168.92

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Solution

The fourth proportional to 572,794.04, 790,455.78 and 318,168.92 is: 439,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,794.04 : 790,455.78 = 318,168.92 : x
  2. Step 2: Convert to fraction form
    572,794.04/790,455.78 = 318,168.92/x
  3. Step 3: Cross multiply
    572,794.04x = 790,455.78 × 318,168.92
  4. Step 4: Simplify right side
    572,794.04x = 251,498,461,830.36
  5. Step 5: Solve for x
    x = 251,498,461,830.36/572,794.04
  6. Step 6: Final answer
    x = 439,073.11

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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.