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Finding the Fourth Proportional to 563,395.53, 777,491.96 and 308,741.25

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Solution

The fourth proportional to 563,395.53, 777,491.96 and 308,741.25 is: 426,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,395.53 : 777,491.96 = 308,741.25 : x
  2. Step 2: Convert to fraction form
    563,395.53/777,491.96 = 308,741.25/x
  3. Step 3: Cross multiply
    563,395.53x = 777,491.96 × 308,741.25
  4. Step 4: Simplify right side
    563,395.53x = 240,043,838,051.64
  5. Step 5: Solve for x
    x = 240,043,838,051.64/563,395.53
  6. Step 6: Final answer
    x = 426,066.28

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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.