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Finding the Fourth Proportional to 1,955,566.80, 2,934,662.40 and 890,060.40

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Solution

The fourth proportional to 1,955,566.80, 2,934,662.40 and 890,060.40 is: 1,335,687.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,566.80 : 2,934,662.40 = 890,060.40 : x
  2. Step 2: Convert to fraction form
    1,955,566.80/2,934,662.40 = 890,060.40/x
  3. Step 3: Cross multiply
    1,955,566.80x = 2,934,662.40 × 890,060.40
  4. Step 4: Simplify right side
    1,955,566.80x = 2,612,026,789,608.96
  5. Step 5: Solve for x
    x = 2,612,026,789,608.96/1,955,566.80
  6. Step 6: Final answer
    x = 1,335,687.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.