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Finding the Fourth Proportional to 365,189.40, 547,784.10 and 359,940.60

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Solution

The fourth proportional to 365,189.40, 547,784.10 and 359,940.60 is: 539,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,189.40 : 547,784.10 = 359,940.60 : x
  2. Step 2: Convert to fraction form
    365,189.40/547,784.10 = 359,940.60/x
  3. Step 3: Cross multiply
    365,189.40x = 547,784.10 × 359,940.60
  4. Step 4: Simplify right side
    365,189.40x = 197,169,737,624.46
  5. Step 5: Solve for x
    x = 197,169,737,624.46/365,189.40
  6. Step 6: Final answer
    x = 539,910.90

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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.