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Finding the Fourth Proportional to 364,518.90, 546,778.35 and 205,086.60

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Solution

The fourth proportional to 364,518.90, 546,778.35 and 205,086.60 is: 307,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,518.90 : 546,778.35 = 205,086.60 : x
  2. Step 2: Convert to fraction form
    364,518.90/546,778.35 = 205,086.60/x
  3. Step 3: Cross multiply
    364,518.90x = 546,778.35 × 205,086.60
  4. Step 4: Simplify right side
    364,518.90x = 112,136,912,755.11
  5. Step 5: Solve for x
    x = 112,136,912,755.11/364,518.90
  6. Step 6: Final answer
    x = 307,629.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.