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Finding the Fourth Proportional to 312,666.89, 469,627.96 and 186,553.23

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Solution

The fourth proportional to 312,666.89, 469,627.96 and 186,553.23 is: 280,204.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,666.89 : 469,627.96 = 186,553.23 : x
  2. Step 2: Convert to fraction form
    312,666.89/469,627.96 = 186,553.23/x
  3. Step 3: Cross multiply
    312,666.89x = 469,627.96 × 186,553.23
  4. Step 4: Simplify right side
    312,666.89x = 87,610,613,600.27
  5. Step 5: Solve for x
    x = 87,610,613,600.27/312,666.89
  6. Step 6: Final answer
    x = 280,204.32

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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.