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Finding the Fourth Proportional to 504,493.12, 696,217.28 and 300,516.19

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Solution

The fourth proportional to 504,493.12, 696,217.28 and 300,516.19 is: 414,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,493.12 : 696,217.28 = 300,516.19 : x
  2. Step 2: Convert to fraction form
    504,493.12/696,217.28 = 300,516.19/x
  3. Step 3: Cross multiply
    504,493.12x = 696,217.28 × 300,516.19
  4. Step 4: Simplify right side
    504,493.12x = 209,224,561,154.64
  5. Step 5: Solve for x
    x = 209,224,561,154.64/504,493.12
  6. Step 6: Final answer
    x = 414,722.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.