Home / 705,179.58-971,936.19-509,107.74

Finding the Fourth Proportional to 705,179.58, 971,936.19 and 509,107.74

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Solution

The fourth proportional to 705,179.58, 971,936.19 and 509,107.74 is: 701,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,179.58 : 971,936.19 = 509,107.74 : x
  2. Step 2: Convert to fraction form
    705,179.58/971,936.19 = 509,107.74/x
  3. Step 3: Cross multiply
    705,179.58x = 971,936.19 × 509,107.74
  4. Step 4: Simplify right side
    705,179.58x = 494,820,237,115.11
  5. Step 5: Solve for x
    x = 494,820,237,115.11/705,179.58
  6. Step 6: Final answer
    x = 701,693.94

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Double scale
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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.