Home / 838,198.35-1,256,417.12-411,142.86

Finding the Fourth Proportional to 838,198.35, 1,256,417.12 and 411,142.86

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Solution

The fourth proportional to 838,198.35, 1,256,417.12 and 411,142.86 is: 616,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,198.35 : 1,256,417.12 = 411,142.86 : x
  2. Step 2: Convert to fraction form
    838,198.35/1,256,417.12 = 411,142.86/x
  3. Step 3: Cross multiply
    838,198.35x = 1,256,417.12 × 411,142.86
  4. Step 4: Simplify right side
    838,198.35x = 516,566,929,097.62
  5. Step 5: Solve for x
    x = 516,566,929,097.62/838,198.35
  6. Step 6: Final answer
    x = 616,282.45

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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.