Home / 926,809.20-1,390,732.20-394,239.60

Finding the Fourth Proportional to 926,809.20, 1,390,732.20 and 394,239.60

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Solution

The fourth proportional to 926,809.20, 1,390,732.20 and 394,239.60 is: 591,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,809.20 : 1,390,732.20 = 394,239.60 : x
  2. Step 2: Convert to fraction form
    926,809.20/1,390,732.20 = 394,239.60/x
  3. Step 3: Cross multiply
    926,809.20x = 1,390,732.20 × 394,239.60
  4. Step 4: Simplify right side
    926,809.20x = 548,281,706,235.12
  5. Step 5: Solve for x
    x = 548,281,706,235.12/926,809.20
  6. Step 6: Final answer
    x = 591,579.91

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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.