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Finding the Fourth Proportional to 543,788.33, 750,125.62 and 505,300.49

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Solution

The fourth proportional to 543,788.33, 750,125.62 and 505,300.49 is: 697,033.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,788.33 : 750,125.62 = 505,300.49 : x
  2. Step 2: Convert to fraction form
    543,788.33/750,125.62 = 505,300.49/x
  3. Step 3: Cross multiply
    543,788.33x = 750,125.62 × 505,300.49
  4. Step 4: Simplify right side
    543,788.33x = 379,038,843,347.55
  5. Step 5: Solve for x
    x = 379,038,843,347.55/543,788.33
  6. Step 6: Final answer
    x = 697,033.80

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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.