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Finding the Fourth Proportional to 768,729.13, 1,153,097.80 and 504,165.01

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Solution

The fourth proportional to 768,729.13, 1,153,097.80 and 504,165.01 is: 756,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,729.13 : 1,153,097.80 = 504,165.01 : x
  2. Step 2: Convert to fraction form
    768,729.13/1,153,097.80 = 504,165.01/x
  3. Step 3: Cross multiply
    768,729.13x = 1,153,097.80 × 504,165.01
  4. Step 4: Simplify right side
    768,729.13x = 581,351,563,304.84
  5. Step 5: Solve for x
    x = 581,351,563,304.84/768,729.13
  6. Step 6: Final answer
    x = 756,250.20

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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.