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Finding the Fourth Proportional to 393,580.60, 590,307.54 and 113,034.04

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Solution

The fourth proportional to 393,580.60, 590,307.54 and 113,034.04 is: 169,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,580.60 : 590,307.54 = 113,034.04 : x
  2. Step 2: Convert to fraction form
    393,580.60/590,307.54 = 113,034.04/x
  3. Step 3: Cross multiply
    393,580.60x = 590,307.54 × 113,034.04
  4. Step 4: Simplify right side
    393,580.60x = 66,724,846,088.66
  5. Step 5: Solve for x
    x = 66,724,846,088.66/393,580.60
  6. Step 6: Final answer
    x = 169,532.86

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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.