Home / 705,890.30-1,059,043.28-256,604.09

Finding the Fourth Proportional to 705,890.30, 1,059,043.28 and 256,604.09

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Solution

The fourth proportional to 705,890.30, 1,059,043.28 and 256,604.09 is: 384,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,890.30 : 1,059,043.28 = 256,604.09 : x
  2. Step 2: Convert to fraction form
    705,890.30/1,059,043.28 = 256,604.09/x
  3. Step 3: Cross multiply
    705,890.30x = 1,059,043.28 × 256,604.09
  4. Step 4: Simplify right side
    705,890.30x = 271,754,830,556.78
  5. Step 5: Solve for x
    x = 271,754,830,556.78/705,890.30
  6. Step 6: Final answer
    x = 384,981.68

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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.