Home / 1,289,845.40-1,934,768.10-652,116.20

Finding the Fourth Proportional to 1,289,845.40, 1,934,768.10 and 652,116.20

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Solution

The fourth proportional to 1,289,845.40, 1,934,768.10 and 652,116.20 is: 978,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,845.40 : 1,934,768.10 = 652,116.20 : x
  2. Step 2: Convert to fraction form
    1,289,845.40/1,934,768.10 = 652,116.20/x
  3. Step 3: Cross multiply
    1,289,845.40x = 1,934,768.10 × 652,116.20
  4. Step 4: Simplify right side
    1,289,845.40x = 1,261,693,621,253.22
  5. Step 5: Solve for x
    x = 1,261,693,621,253.22/1,289,845.40
  6. Step 6: Final answer
    x = 978,174.30

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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.