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Finding the Fourth Proportional to 624,842.90, 937,070.60 and 225,431.76

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Solution

The fourth proportional to 624,842.90, 937,070.60 and 225,431.76 is: 338,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,842.90 : 937,070.60 = 225,431.76 : x
  2. Step 2: Convert to fraction form
    624,842.90/937,070.60 = 225,431.76/x
  3. Step 3: Cross multiply
    624,842.90x = 937,070.60 × 225,431.76
  4. Step 4: Simplify right side
    624,842.90x = 211,245,474,602.26
  5. Step 5: Solve for x
    x = 211,245,474,602.26/624,842.90
  6. Step 6: Final answer
    x = 338,077.74

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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.