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Finding the Fourth Proportional to 575,827.45, 794,639.66 and 317,720.48

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Solution

The fourth proportional to 575,827.45, 794,639.66 and 317,720.48 is: 438,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,827.45 : 794,639.66 = 317,720.48 : x
  2. Step 2: Convert to fraction form
    575,827.45/794,639.66 = 317,720.48/x
  3. Step 3: Cross multiply
    575,827.45x = 794,639.66 × 317,720.48
  4. Step 4: Simplify right side
    575,827.45x = 252,473,288,640.44
  5. Step 5: Solve for x
    x = 252,473,288,640.44/575,827.45
  6. Step 6: Final answer
    x = 438,453.03

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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.