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Finding the Fourth Proportional to 574,396.30, 792,645.51 and 319,742.02

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Solution

The fourth proportional to 574,396.30, 792,645.51 and 319,742.02 is: 441,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,396.30 : 792,645.51 = 319,742.02 : x
  2. Step 2: Convert to fraction form
    574,396.30/792,645.51 = 319,742.02/x
  3. Step 3: Cross multiply
    574,396.30x = 792,645.51 × 319,742.02
  4. Step 4: Simplify right side
    574,396.30x = 253,442,076,511.33
  5. Step 5: Solve for x
    x = 253,442,076,511.33/574,396.30
  6. Step 6: Final answer
    x = 441,232.08

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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.