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Finding the Fourth Proportional to 624,207.44, 935,999.40 and 203,430.80

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Solution

The fourth proportional to 624,207.44, 935,999.40 and 203,430.80 is: 305,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,207.44 : 935,999.40 = 203,430.80 : x
  2. Step 2: Convert to fraction form
    624,207.44/935,999.40 = 203,430.80/x
  3. Step 3: Cross multiply
    624,207.44x = 935,999.40 × 203,430.80
  4. Step 4: Simplify right side
    624,207.44x = 190,411,106,741.52
  5. Step 5: Solve for x
    x = 190,411,106,741.52/624,207.44
  6. Step 6: Final answer
    x = 305,044.60

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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.