Home / 519,845.31-779,795.51-145,897.47

Finding the Fourth Proportional to 519,845.31, 779,795.51 and 145,897.47

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Solution

The fourth proportional to 519,845.31, 779,795.51 and 145,897.47 is: 218,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,845.31 : 779,795.51 = 145,897.47 : x
  2. Step 2: Convert to fraction form
    519,845.31/779,795.51 = 145,897.47/x
  3. Step 3: Cross multiply
    519,845.31x = 779,795.51 × 145,897.47
  4. Step 4: Simplify right side
    519,845.31x = 113,770,191,296.87
  5. Step 5: Solve for x
    x = 113,770,191,296.87/519,845.31
  6. Step 6: Final answer
    x = 218,853.93

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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.