Home / 917,791.91-1,376,215.15-411,919.22

Finding the Fourth Proportional to 917,791.91, 1,376,215.15 and 411,919.22

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Solution

The fourth proportional to 917,791.91, 1,376,215.15 and 411,919.22 is: 617,666.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,791.91 : 1,376,215.15 = 411,919.22 : x
  2. Step 2: Convert to fraction form
    917,791.91/1,376,215.15 = 411,919.22/x
  3. Step 3: Cross multiply
    917,791.91x = 1,376,215.15 × 411,919.22
  4. Step 4: Simplify right side
    917,791.91x = 566,889,464,259.11
  5. Step 5: Solve for x
    x = 566,889,464,259.11/917,791.91
  6. Step 6: Final answer
    x = 617,666.66

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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.