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Finding the Fourth Proportional to 567,593.31, 783,284.07 and 312,953.55

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Solution

The fourth proportional to 567,593.31, 783,284.07 and 312,953.55 is: 431,878.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,593.31 : 783,284.07 = 312,953.55 : x
  2. Step 2: Convert to fraction form
    567,593.31/783,284.07 = 312,953.55/x
  3. Step 3: Cross multiply
    567,593.31x = 783,284.07 × 312,953.55
  4. Step 4: Simplify right side
    567,593.31x = 245,131,530,364.95
  5. Step 5: Solve for x
    x = 245,131,530,364.95/567,593.31
  6. Step 6: Final answer
    x = 431,878.82

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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.