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Finding the Fourth Proportional to 575,828.45, 794,641.03 and 317,721.48

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Solution

The fourth proportional to 575,828.45, 794,641.03 and 317,721.48 is: 438,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,828.45 : 794,641.03 = 317,721.48 : x
  2. Step 2: Convert to fraction form
    575,828.45/794,641.03 = 317,721.48/x
  3. Step 3: Cross multiply
    575,828.45x = 794,641.03 × 317,721.48
  4. Step 4: Simplify right side
    575,828.45x = 252,474,524,120.32
  5. Step 5: Solve for x
    x = 252,474,524,120.32/575,828.45
  6. Step 6: Final answer
    x = 438,454.41

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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.