Home / 926,779.20-1,390,687.20-394,209.60

Finding the Fourth Proportional to 926,779.20, 1,390,687.20 and 394,209.60

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Solution

The fourth proportional to 926,779.20, 1,390,687.20 and 394,209.60 is: 591,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,779.20 : 1,390,687.20 = 394,209.60 : x
  2. Step 2: Convert to fraction form
    926,779.20/1,390,687.20 = 394,209.60/x
  3. Step 3: Cross multiply
    926,779.20x = 1,390,687.20 × 394,209.60
  4. Step 4: Simplify right side
    926,779.20x = 548,222,244,837.12
  5. Step 5: Solve for x
    x = 548,222,244,837.12/926,779.20
  6. Step 6: Final answer
    x = 591,534.90

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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.