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Finding the Fourth Proportional to 490,868.60, 736,302.90 and 490,868.60

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Solution

The fourth proportional to 490,868.60, 736,302.90 and 490,868.60 is: 736,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,868.60 : 736,302.90 = 490,868.60 : x
  2. Step 2: Convert to fraction form
    490,868.60/736,302.90 = 490,868.60/x
  3. Step 3: Cross multiply
    490,868.60x = 736,302.90 × 490,868.60
  4. Step 4: Simplify right side
    490,868.60x = 361,427,973,698.94
  5. Step 5: Solve for x
    x = 361,427,973,698.94/490,868.60
  6. Step 6: Final answer
    x = 736,302.90

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Double scale
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Similar ratio
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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.