Home / 917,791.53-1,376,214.59-411,918.84

Finding the Fourth Proportional to 917,791.53, 1,376,214.59 and 411,918.84

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Solution

The fourth proportional to 917,791.53, 1,376,214.59 and 411,918.84 is: 617,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,791.53 : 1,376,214.59 = 411,918.84 : x
  2. Step 2: Convert to fraction form
    917,791.53/1,376,214.59 = 411,918.84/x
  3. Step 3: Cross multiply
    917,791.53x = 1,376,214.59 × 411,918.84
  4. Step 4: Simplify right side
    917,791.53x = 566,888,718,709.25
  5. Step 5: Solve for x
    x = 566,888,718,709.25/917,791.53
  6. Step 6: Final answer
    x = 617,666.10

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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.