Home / 859,076.80-1,286,720.40-538,183.84

Finding the Fourth Proportional to 859,076.80, 1,286,720.40 and 538,183.84

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Solution

The fourth proportional to 859,076.80, 1,286,720.40 and 538,183.84 is: 806,088.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,076.80 : 1,286,720.40 = 538,183.84 : x
  2. Step 2: Convert to fraction form
    859,076.80/1,286,720.40 = 538,183.84/x
  3. Step 3: Cross multiply
    859,076.80x = 1,286,720.40 × 538,183.84
  4. Step 4: Simplify right side
    859,076.80x = 692,492,125,878.34
  5. Step 5: Solve for x
    x = 692,492,125,878.34/859,076.80
  6. Step 6: Final answer
    x = 806,088.73

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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.