Home / 1,301,806.40-1,953,861.60-768,660.80

Finding the Fourth Proportional to 1,301,806.40, 1,953,861.60 and 768,660.80

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Solution

The fourth proportional to 1,301,806.40, 1,953,861.60 and 768,660.80 is: 1,153,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,806.40 : 1,953,861.60 = 768,660.80 : x
  2. Step 2: Convert to fraction form
    1,301,806.40/1,953,861.60 = 768,660.80/x
  3. Step 3: Cross multiply
    1,301,806.40x = 1,953,861.60 × 768,660.80
  4. Step 4: Simplify right side
    1,301,806.40x = 1,501,856,820,545.28
  5. Step 5: Solve for x
    x = 1,501,856,820,545.28/1,301,806.40
  6. Step 6: Final answer
    x = 1,153,671.41

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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.