Home / 936,881.78-1,405,112.27-430,956.86

Finding the Fourth Proportional to 936,881.78, 1,405,112.27 and 430,956.86

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Solution

The fourth proportional to 936,881.78, 1,405,112.27 and 430,956.86 is: 646,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,881.78 : 1,405,112.27 = 430,956.86 : x
  2. Step 2: Convert to fraction form
    936,881.78/1,405,112.27 = 430,956.86/x
  3. Step 3: Cross multiply
    936,881.78x = 1,405,112.27 × 430,956.86
  4. Step 4: Simplify right side
    936,881.78x = 605,542,762,646.33
  5. Step 5: Solve for x
    x = 605,542,762,646.33/936,881.78
  6. Step 6: Final answer
    x = 646,338.50

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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.