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Finding the Fourth Proportional to 574,745, 793,091.30 and 320,119.88

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Solution

The fourth proportional to 574,745, 793,091.30 and 320,119.88 is: 441,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,745 : 793,091.30 = 320,119.88 : x
  2. Step 2: Convert to fraction form
    574,745/793,091.30 = 320,119.88/x
  3. Step 3: Cross multiply
    574,745x = 793,091.30 × 320,119.88
  4. Step 4: Simplify right side
    574,745x = 253,884,291,785.04
  5. Step 5: Solve for x
    x = 253,884,291,785.04/574,745
  6. Step 6: Final answer
    x = 441,733.80

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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.