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Finding the Fourth Proportional to 567,949.43, 783,709.54 and 313,300.55

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Solution

The fourth proportional to 567,949.43, 783,709.54 and 313,300.55 is: 432,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,949.43 : 783,709.54 = 313,300.55 : x
  2. Step 2: Convert to fraction form
    567,949.43/783,709.54 = 313,300.55/x
  3. Step 3: Cross multiply
    567,949.43x = 783,709.54 × 313,300.55
  4. Step 4: Simplify right side
    567,949.43x = 245,536,625,220.45
  5. Step 5: Solve for x
    x = 245,536,625,220.45/567,949.43
  6. Step 6: Final answer
    x = 432,321.28

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1.5x scale

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.