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Finding the Fourth Proportional to 468,803.30, 646,951.65 and 253,943.36

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Solution

The fourth proportional to 468,803.30, 646,951.65 and 253,943.36 is: 350,443.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,803.30 : 646,951.65 = 253,943.36 : x
  2. Step 2: Convert to fraction form
    468,803.30/646,951.65 = 253,943.36/x
  3. Step 3: Cross multiply
    468,803.30x = 646,951.65 × 253,943.36
  4. Step 4: Simplify right side
    468,803.30x = 164,289,075,902.14
  5. Step 5: Solve for x
    x = 164,289,075,902.14/468,803.30
  6. Step 6: Final answer
    x = 350,443.52

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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.