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Finding the Fourth Proportional to 574,626.72, 792,986.04 and 319,987.02

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Solution

The fourth proportional to 574,626.72, 792,986.04 and 319,987.02 is: 441,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,626.72 : 792,986.04 = 319,987.02 : x
  2. Step 2: Convert to fraction form
    574,626.72/792,986.04 = 319,987.02/x
  3. Step 3: Cross multiply
    574,626.72x = 792,986.04 × 319,987.02
  4. Step 4: Simplify right side
    574,626.72x = 253,745,239,841.20
  5. Step 5: Solve for x
    x = 253,745,239,841.20/574,626.72
  6. Step 6: Final answer
    x = 441,582.74

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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.