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Finding the Fourth Proportional to 468,623.84, 646,699.76 and 253,763.92

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Solution

The fourth proportional to 468,623.84, 646,699.76 and 253,763.92 is: 350,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,623.84 : 646,699.76 = 253,763.92 : x
  2. Step 2: Convert to fraction form
    468,623.84/646,699.76 = 253,763.92/x
  3. Step 3: Cross multiply
    468,623.84x = 646,699.76 × 253,763.92
  4. Step 4: Simplify right side
    468,623.84x = 164,109,066,160.66
  5. Step 5: Solve for x
    x = 164,109,066,160.66/468,623.84
  6. Step 6: Final answer
    x = 350,193.59

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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.