Home / 887,236.72-1,330,459.80-256,000.56

Finding the Fourth Proportional to 887,236.72, 1,330,459.80 and 256,000.56

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Solution

The fourth proportional to 887,236.72, 1,330,459.80 and 256,000.56 is: 383,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,236.72 : 1,330,459.80 = 256,000.56 : x
  2. Step 2: Convert to fraction form
    887,236.72/1,330,459.80 = 256,000.56/x
  3. Step 3: Cross multiply
    887,236.72x = 1,330,459.80 × 256,000.56
  4. Step 4: Simplify right side
    887,236.72x = 340,598,453,857.49
  5. Step 5: Solve for x
    x = 340,598,453,857.49/887,236.72
  6. Step 6: Final answer
    x = 383,886.79

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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.