Home / 1,286,138.11-1,927,525.34-527,090.86

Finding the Fourth Proportional to 1,286,138.11, 1,927,525.34 and 527,090.86

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Solution

The fourth proportional to 1,286,138.11, 1,927,525.34 and 527,090.86 is: 789,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,138.11 : 1,927,525.34 = 527,090.86 : x
  2. Step 2: Convert to fraction form
    1,286,138.11/1,927,525.34 = 527,090.86/x
  3. Step 3: Cross multiply
    1,286,138.11x = 1,927,525.34 × 527,090.86
  4. Step 4: Simplify right side
    1,286,138.11x = 1,015,980,989,132.39
  5. Step 5: Solve for x
    x = 1,015,980,989,132.39/1,286,138.11
  6. Step 6: Final answer
    x = 789,947.04

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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.