Home / 928,648.32-1,393,072.80-396,225.60

Finding the Fourth Proportional to 928,648.32, 1,393,072.80 and 396,225.60

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Solution

The fourth proportional to 928,648.32, 1,393,072.80 and 396,225.60 is: 594,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,648.32 : 1,393,072.80 = 396,225.60 : x
  2. Step 2: Convert to fraction form
    928,648.32/1,393,072.80 = 396,225.60/x
  3. Step 3: Cross multiply
    928,648.32x = 1,393,072.80 × 396,225.60
  4. Step 4: Simplify right side
    928,648.32x = 551,971,106,023.68
  5. Step 5: Solve for x
    x = 551,971,106,023.68/928,648.32
  6. Step 6: Final answer
    x = 594,381.20

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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.