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Finding the Fourth Proportional to 567,903.20, 783,701.28 and 313,256.48

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Solution

The fourth proportional to 567,903.20, 783,701.28 and 313,256.48 is: 432,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,903.20 : 783,701.28 = 313,256.48 : x
  2. Step 2: Convert to fraction form
    567,903.20/783,701.28 = 313,256.48/x
  3. Step 3: Cross multiply
    567,903.20x = 783,701.28 × 313,256.48
  4. Step 4: Simplify right side
    567,903.20x = 245,499,504,344.29
  5. Step 5: Solve for x
    x = 245,499,504,344.29/567,903.20
  6. Step 6: Final answer
    x = 432,291.11

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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.