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Finding the Fourth Proportional to 550,633.17, 759,829.10 and 308,882.19

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Solution

The fourth proportional to 550,633.17, 759,829.10 and 308,882.19 is: 426,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,633.17 : 759,829.10 = 308,882.19 : x
  2. Step 2: Convert to fraction form
    550,633.17/759,829.10 = 308,882.19/x
  3. Step 3: Cross multiply
    550,633.17x = 759,829.10 × 308,882.19
  4. Step 4: Simplify right side
    550,633.17x = 234,697,674,889.32
  5. Step 5: Solve for x
    x = 234,697,674,889.32/550,633.17
  6. Step 6: Final answer
    x = 426,232.36

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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.