Home / 825,868.40-1,237,247.40-425,145.20

Finding the Fourth Proportional to 825,868.40, 1,237,247.40 and 425,145.20

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Solution

The fourth proportional to 825,868.40, 1,237,247.40 and 425,145.20 is: 636,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,868.40 : 1,237,247.40 = 425,145.20 : x
  2. Step 2: Convert to fraction form
    825,868.40/1,237,247.40 = 425,145.20/x
  3. Step 3: Cross multiply
    825,868.40x = 1,237,247.40 × 425,145.20
  4. Step 4: Simplify right side
    825,868.40x = 526,009,793,322.48
  5. Step 5: Solve for x
    x = 526,009,793,322.48/825,868.40
  6. Step 6: Final answer
    x = 636,917.21

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1.5x scale

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.