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Finding the Fourth Proportional to 468,623.85, 646,699.75 and 253,763.90

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Solution

The fourth proportional to 468,623.85, 646,699.75 and 253,763.90 is: 350,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,623.85 : 646,699.75 = 253,763.90 : x
  2. Step 2: Convert to fraction form
    468,623.85/646,699.75 = 253,763.90/x
  3. Step 3: Cross multiply
    468,623.85x = 646,699.75 × 253,763.90
  4. Step 4: Simplify right side
    468,623.85x = 164,109,050,689.03
  5. Step 5: Solve for x
    x = 164,109,050,689.03/468,623.85
  6. Step 6: Final answer
    x = 350,193.55

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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.