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Finding the Fourth Proportional to 501,638.48, 752,989.81 and 444,307.89

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Solution

The fourth proportional to 501,638.48, 752,989.81 and 444,307.89 is: 666,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,638.48 : 752,989.81 = 444,307.89 : x
  2. Step 2: Convert to fraction form
    501,638.48/752,989.81 = 444,307.89/x
  3. Step 3: Cross multiply
    501,638.48x = 752,989.81 × 444,307.89
  4. Step 4: Simplify right side
    501,638.48x = 334,559,313,672.60
  5. Step 5: Solve for x
    x = 334,559,313,672.60/501,638.48
  6. Step 6: Final answer
    x = 666,933.11

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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.