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Finding the Fourth Proportional to 574,397.30, 792,646.89 and 319,743.02

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Solution

The fourth proportional to 574,397.30, 792,646.89 and 319,743.02 is: 441,233.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,397.30 : 792,646.89 = 319,743.02 : x
  2. Step 2: Convert to fraction form
    574,397.30/792,646.89 = 319,743.02/x
  3. Step 3: Cross multiply
    574,397.30x = 792,646.89 × 319,743.02
  4. Step 4: Simplify right side
    574,397.30x = 253,443,310,402.21
  5. Step 5: Solve for x
    x = 253,443,310,402.21/574,397.30
  6. Step 6: Final answer
    x = 441,233.46

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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.