Home / 1,286,514.80-1,928,159.40-655,679.60

Finding the Fourth Proportional to 1,286,514.80, 1,928,159.40 and 655,679.60

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Solution

The fourth proportional to 1,286,514.80, 1,928,159.40 and 655,679.60 is: 982,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,514.80 : 1,928,159.40 = 655,679.60 : x
  2. Step 2: Convert to fraction form
    1,286,514.80/1,928,159.40 = 655,679.60/x
  3. Step 3: Cross multiply
    1,286,514.80x = 1,928,159.40 × 655,679.60
  4. Step 4: Simplify right side
    1,286,514.80x = 1,264,254,784,128.24
  5. Step 5: Solve for x
    x = 1,264,254,784,128.24/1,286,514.80
  6. Step 6: Final answer
    x = 982,697.43

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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.