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Finding the Fourth Proportional to 464,782.40, 641,253.48 and 260,803.34

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Solution

The fourth proportional to 464,782.40, 641,253.48 and 260,803.34 is: 359,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,782.40 : 641,253.48 = 260,803.34 : x
  2. Step 2: Convert to fraction form
    464,782.40/641,253.48 = 260,803.34/x
  3. Step 3: Cross multiply
    464,782.40x = 641,253.48 × 260,803.34
  4. Step 4: Simplify right side
    464,782.40x = 167,241,049,370.62
  5. Step 5: Solve for x
    x = 167,241,049,370.62/464,782.40
  6. Step 6: Final answer
    x = 359,826.55

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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.