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Finding the Fourth Proportional to 574,206.96, 792,397.82 and 319,558.15

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Solution

The fourth proportional to 574,206.96, 792,397.82 and 319,558.15 is: 440,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,206.96 : 792,397.82 = 319,558.15 : x
  2. Step 2: Convert to fraction form
    574,206.96/792,397.82 = 319,558.15/x
  3. Step 3: Cross multiply
    574,206.96x = 792,397.82 × 319,558.15
  4. Step 4: Simplify right side
    574,206.96x = 253,217,181,423.23
  5. Step 5: Solve for x
    x = 253,217,181,423.23/574,206.96
  6. Step 6: Final answer
    x = 440,985.91

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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.