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Finding the Fourth Proportional to 575,391.92, 794,042.70 and 313,745.30

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Solution

The fourth proportional to 575,391.92, 794,042.70 and 313,745.30 is: 432,969.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,391.92 : 794,042.70 = 313,745.30 : x
  2. Step 2: Convert to fraction form
    575,391.92/794,042.70 = 313,745.30/x
  3. Step 3: Cross multiply
    575,391.92x = 794,042.70 × 313,745.30
  4. Step 4: Simplify right side
    575,391.92x = 249,127,165,124.31
  5. Step 5: Solve for x
    x = 249,127,165,124.31/575,391.92
  6. Step 6: Final answer
    x = 432,969.52

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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.