Home / 695,317.09-1,042,975.64-379,601.77

Finding the Fourth Proportional to 695,317.09, 1,042,975.64 and 379,601.77

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Solution

The fourth proportional to 695,317.09, 1,042,975.64 and 379,601.77 is: 569,402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,317.09 : 1,042,975.64 = 379,601.77 : x
  2. Step 2: Convert to fraction form
    695,317.09/1,042,975.64 = 379,601.77/x
  3. Step 3: Cross multiply
    695,317.09x = 1,042,975.64 × 379,601.77
  4. Step 4: Simplify right side
    695,317.09x = 395,915,399,010.88
  5. Step 5: Solve for x
    x = 395,915,399,010.88/695,317.09
  6. Step 6: Final answer
    x = 569,402.66

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Double scale
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Similar ratio
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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.