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Finding the Fourth Proportional to 567,429.48, 783,107.88 and 423,940.41

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Solution

The fourth proportional to 567,429.48, 783,107.88 and 423,940.41 is: 585,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,429.48 : 783,107.88 = 423,940.41 : x
  2. Step 2: Convert to fraction form
    567,429.48/783,107.88 = 423,940.41/x
  3. Step 3: Cross multiply
    567,429.48x = 783,107.88 × 423,940.41
  4. Step 4: Simplify right side
    567,429.48x = 331,991,075,721.43
  5. Step 5: Solve for x
    x = 331,991,075,721.43/567,429.48
  6. Step 6: Final answer
    x = 585,079.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.