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Finding the Fourth Proportional to 603,559.05, 905,338.90 and 224,430.51

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Solution

The fourth proportional to 603,559.05, 905,338.90 and 224,430.51 is: 336,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,559.05 : 905,338.90 = 224,430.51 : x
  2. Step 2: Convert to fraction form
    603,559.05/905,338.90 = 224,430.51/x
  3. Step 3: Cross multiply
    603,559.05x = 905,338.90 × 224,430.51
  4. Step 4: Simplify right side
    603,559.05x = 203,185,671,049.84
  5. Step 5: Solve for x
    x = 203,185,671,049.84/603,559.05
  6. Step 6: Final answer
    x = 336,645.89

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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.