Home / 1,276,113.60-1,911,808.80-743,889.60

Finding the Fourth Proportional to 1,276,113.60, 1,911,808.80 and 743,889.60

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Solution

The fourth proportional to 1,276,113.60, 1,911,808.80 and 743,889.60 is: 1,114,457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,113.60 : 1,911,808.80 = 743,889.60 : x
  2. Step 2: Convert to fraction form
    1,276,113.60/1,911,808.80 = 743,889.60/x
  3. Step 3: Cross multiply
    1,276,113.60x = 1,911,808.80 × 743,889.60
  4. Step 4: Simplify right side
    1,276,113.60x = 1,422,174,683,508.48
  5. Step 5: Solve for x
    x = 1,422,174,683,508.48/1,276,113.60
  6. Step 6: Final answer
    x = 1,114,457.74

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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.