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Finding the Fourth Proportional to 318,294.01, 439,208.76 and 182,319.85

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Solution

The fourth proportional to 318,294.01, 439,208.76 and 182,319.85 is: 251,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,294.01 : 439,208.76 = 182,319.85 : x
  2. Step 2: Convert to fraction form
    318,294.01/439,208.76 = 182,319.85/x
  3. Step 3: Cross multiply
    318,294.01x = 439,208.76 × 182,319.85
  4. Step 4: Simplify right side
    318,294.01x = 80,076,475,241.89
  5. Step 5: Solve for x
    x = 80,076,475,241.89/318,294.01
  6. Step 6: Final answer
    x = 251,580.21

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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.