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Finding the Fourth Proportional to 453,967.90, 626,455.49 and 260,236.72

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Solution

The fourth proportional to 453,967.90, 626,455.49 and 260,236.72 is: 359,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,967.90 : 626,455.49 = 260,236.72 : x
  2. Step 2: Convert to fraction form
    453,967.90/626,455.49 = 260,236.72/x
  3. Step 3: Cross multiply
    453,967.90x = 626,455.49 × 260,236.72
  4. Step 4: Simplify right side
    453,967.90x = 163,026,722,191.34
  5. Step 5: Solve for x
    x = 163,026,722,191.34/453,967.90
  6. Step 6: Final answer
    x = 359,115.09

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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.