Home / 619,844.90-855,320.22-347,942.72

Finding the Fourth Proportional to 619,844.90, 855,320.22 and 347,942.72

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Solution

The fourth proportional to 619,844.90, 855,320.22 and 347,942.72 is: 480,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,844.90 : 855,320.22 = 347,942.72 : x
  2. Step 2: Convert to fraction form
    619,844.90/855,320.22 = 347,942.72/x
  3. Step 3: Cross multiply
    619,844.90x = 855,320.22 × 347,942.72
  4. Step 4: Simplify right side
    619,844.90x = 297,602,443,817.80
  5. Step 5: Solve for x
    x = 297,602,443,817.80/619,844.90
  6. Step 6: Final answer
    x = 480,124.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.