Home / 928,953.05-1,393,431.69-255,043.58

Finding the Fourth Proportional to 928,953.05, 1,393,431.69 and 255,043.58

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Solution

The fourth proportional to 928,953.05, 1,393,431.69 and 255,043.58 is: 382,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,953.05 : 1,393,431.69 = 255,043.58 : x
  2. Step 2: Convert to fraction form
    928,953.05/1,393,431.69 = 255,043.58/x
  3. Step 3: Cross multiply
    928,953.05x = 1,393,431.69 × 255,043.58
  4. Step 4: Simplify right side
    928,953.05x = 355,385,799,735.89
  5. Step 5: Solve for x
    x = 355,385,799,735.89/928,953.05
  6. Step 6: Final answer
    x = 382,565.95

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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.