Home / 1,761,307.60-2,641,961.40-639,230.80

Finding the Fourth Proportional to 1,761,307.60, 2,641,961.40 and 639,230.80

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Solution

The fourth proportional to 1,761,307.60, 2,641,961.40 and 639,230.80 is: 958,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,307.60 : 2,641,961.40 = 639,230.80 : x
  2. Step 2: Convert to fraction form
    1,761,307.60/2,641,961.40 = 639,230.80/x
  3. Step 3: Cross multiply
    1,761,307.60x = 2,641,961.40 × 639,230.80
  4. Step 4: Simplify right side
    1,761,307.60x = 1,688,823,099,291.12
  5. Step 5: Solve for x
    x = 1,688,823,099,291.12/1,761,307.60
  6. Step 6: Final answer
    x = 958,846.20

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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.