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Finding the Fourth Proportional to 603,917.40, 905,876.10 and 248,748.60

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Solution

The fourth proportional to 603,917.40, 905,876.10 and 248,748.60 is: 373,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,917.40 : 905,876.10 = 248,748.60 : x
  2. Step 2: Convert to fraction form
    603,917.40/905,876.10 = 248,748.60/x
  3. Step 3: Cross multiply
    603,917.40x = 905,876.10 × 248,748.60
  4. Step 4: Simplify right side
    603,917.40x = 225,335,411,648.46
  5. Step 5: Solve for x
    x = 225,335,411,648.46/603,917.40
  6. Step 6: Final answer
    x = 373,122.90

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Double scale
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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.