Home / 786,043.51-1,179,314.50-280,593.64

Finding the Fourth Proportional to 786,043.51, 1,179,314.50 and 280,593.64

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Solution

The fourth proportional to 786,043.51, 1,179,314.50 and 280,593.64 is: 420,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,043.51 : 1,179,314.50 = 280,593.64 : x
  2. Step 2: Convert to fraction form
    786,043.51/1,179,314.50 = 280,593.64/x
  3. Step 3: Cross multiply
    786,043.51x = 1,179,314.50 × 280,593.64
  4. Step 4: Simplify right side
    786,043.51x = 330,908,146,856.81
  5. Step 5: Solve for x
    x = 330,908,146,856.81/786,043.51
  6. Step 6: Final answer
    x = 420,979.43

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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.