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Finding the Fourth Proportional to 415,627.78, 573,554.83 and 234,338.10

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Solution

The fourth proportional to 415,627.78, 573,554.83 and 234,338.10 is: 323,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,627.78 : 573,554.83 = 234,338.10 : x
  2. Step 2: Convert to fraction form
    415,627.78/573,554.83 = 234,338.10/x
  3. Step 3: Cross multiply
    415,627.78x = 573,554.83 × 234,338.10
  4. Step 4: Simplify right side
    415,627.78x = 134,405,749,108.02
  5. Step 5: Solve for x
    x = 134,405,749,108.02/415,627.78
  6. Step 6: Final answer
    x = 323,380.09

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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.