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Finding the Fourth Proportional to 373,087.20, 559,630.80 and 205,125.60

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Solution

The fourth proportional to 373,087.20, 559,630.80 and 205,125.60 is: 307,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,087.20 : 559,630.80 = 205,125.60 : x
  2. Step 2: Convert to fraction form
    373,087.20/559,630.80 = 205,125.60/x
  3. Step 3: Cross multiply
    373,087.20x = 559,630.80 × 205,125.60
  4. Step 4: Simplify right side
    373,087.20x = 114,794,603,628.48
  5. Step 5: Solve for x
    x = 114,794,603,628.48/373,087.20
  6. Step 6: Final answer
    x = 307,688.40

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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.