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Finding the Fourth Proportional to 567,549.64, 783,223.94 and 312,909.96

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Solution

The fourth proportional to 567,549.64, 783,223.94 and 312,909.96 is: 431,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,549.64 : 783,223.94 = 312,909.96 : x
  2. Step 2: Convert to fraction form
    567,549.64/783,223.94 = 312,909.96/x
  3. Step 3: Cross multiply
    567,549.64x = 783,223.94 × 312,909.96
  4. Step 4: Simplify right side
    567,549.64x = 245,078,571,736.44
  5. Step 5: Solve for x
    x = 245,078,571,736.44/567,549.64
  6. Step 6: Final answer
    x = 431,818.74

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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.