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Finding the Fourth Proportional to 415,339.56, 573,129.60 and 234,021.60

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Solution

The fourth proportional to 415,339.56, 573,129.60 and 234,021.60 is: 322,927.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,339.56 : 573,129.60 = 234,021.60 : x
  2. Step 2: Convert to fraction form
    415,339.56/573,129.60 = 234,021.60/x
  3. Step 3: Cross multiply
    415,339.56x = 573,129.60 × 234,021.60
  4. Step 4: Simplify right side
    415,339.56x = 134,124,705,999.36
  5. Step 5: Solve for x
    x = 134,124,705,999.36/415,339.56
  6. Step 6: Final answer
    x = 322,927.84

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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.