Home / 1,238,905.60-1,856,025.60-637,820.80

Finding the Fourth Proportional to 1,238,905.60, 1,856,025.60 and 637,820.80

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Solution

The fourth proportional to 1,238,905.60, 1,856,025.60 and 637,820.80 is: 955,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,905.60 : 1,856,025.60 = 637,820.80 : x
  2. Step 2: Convert to fraction form
    1,238,905.60/1,856,025.60 = 637,820.80/x
  3. Step 3: Cross multiply
    1,238,905.60x = 1,856,025.60 × 637,820.80
  4. Step 4: Simplify right side
    1,238,905.60x = 1,183,811,733,012.48
  5. Step 5: Solve for x
    x = 1,183,811,733,012.48/1,238,905.60
  6. Step 6: Final answer
    x = 955,530.21

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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.