Home / 677,380.38-1,013,953.09-437,173.20

Finding the Fourth Proportional to 677,380.38, 1,013,953.09 and 437,173.20

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Solution

The fourth proportional to 677,380.38, 1,013,953.09 and 437,173.20 is: 654,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,380.38 : 1,013,953.09 = 437,173.20 : x
  2. Step 2: Convert to fraction form
    677,380.38/1,013,953.09 = 437,173.20/x
  3. Step 3: Cross multiply
    677,380.38x = 1,013,953.09 × 437,173.20
  4. Step 4: Simplify right side
    677,380.38x = 443,273,114,819.32
  5. Step 5: Solve for x
    x = 443,273,114,819.32/677,380.38
  6. Step 6: Final answer
    x = 654,393.20

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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.