Home / 411,926.63-617,948.42-127,639.52

Finding the Fourth Proportional to 411,926.63, 617,948.42 and 127,639.52

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Solution

The fourth proportional to 411,926.63, 617,948.42 and 127,639.52 is: 191,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,926.63 : 617,948.42 = 127,639.52 : x
  2. Step 2: Convert to fraction form
    411,926.63/617,948.42 = 127,639.52/x
  3. Step 3: Cross multiply
    411,926.63x = 617,948.42 × 127,639.52
  4. Step 4: Simplify right side
    411,926.63x = 78,874,635,985.62
  5. Step 5: Solve for x
    x = 78,874,635,985.62/411,926.63
  6. Step 6: Final answer
    x = 191,477.39

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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.