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Finding the Fourth Proportional to 1,836,690.40, 2,754,314.70 and 698,848.30

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Solution

The fourth proportional to 1,836,690.40, 2,754,314.70 and 698,848.30 is: 1,047,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836,690.40 : 2,754,314.70 = 698,848.30 : x
  2. Step 2: Convert to fraction form
    1,836,690.40/2,754,314.70 = 698,848.30/x
  3. Step 3: Cross multiply
    1,836,690.40x = 2,754,314.70 × 698,848.30
  4. Step 4: Simplify right side
    1,836,690.40x = 1,924,848,145,760.01
  5. Step 5: Solve for x
    x = 1,924,848,145,760.01/1,836,690.40
  6. Step 6: Final answer
    x = 1,047,998.15

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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.