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Finding the Fourth Proportional to 575,023.75, 793,538.21 and 316,910.11

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Solution

The fourth proportional to 575,023.75, 793,538.21 and 316,910.11 is: 437,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,023.75 : 793,538.21 = 316,910.11 : x
  2. Step 2: Convert to fraction form
    575,023.75/793,538.21 = 316,910.11/x
  3. Step 3: Cross multiply
    575,023.75x = 793,538.21 × 316,910.11
  4. Step 4: Simplify right side
    575,023.75x = 251,480,277,851.91
  5. Step 5: Solve for x
    x = 251,480,277,851.91/575,023.75
  6. Step 6: Final answer
    x = 437,338.94

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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.