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Finding the Fourth Proportional to 501,640.02, 752,017.05 and 383,837.31

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Solution

The fourth proportional to 501,640.02, 752,017.05 and 383,837.31 is: 575,417.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,640.02 : 752,017.05 = 383,837.31 : x
  2. Step 2: Convert to fraction form
    501,640.02/752,017.05 = 383,837.31/x
  3. Step 3: Cross multiply
    501,640.02x = 752,017.05 × 383,837.31
  4. Step 4: Simplify right side
    501,640.02x = 288,652,201,546.14
  5. Step 5: Solve for x
    x = 288,652,201,546.14/501,640.02
  6. Step 6: Final answer
    x = 575,417.01

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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.