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Finding the Fourth Proportional to 301,783.86, 452,722.77 and 91,371.78

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Solution

The fourth proportional to 301,783.86, 452,722.77 and 91,371.78 is: 137,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,783.86 : 452,722.77 = 91,371.78 : x
  2. Step 2: Convert to fraction form
    301,783.86/452,722.77 = 91,371.78/x
  3. Step 3: Cross multiply
    301,783.86x = 452,722.77 × 91,371.78
  4. Step 4: Simplify right side
    301,783.86x = 41,366,085,341.43
  5. Step 5: Solve for x
    x = 41,366,085,341.43/301,783.86
  6. Step 6: Final answer
    x = 137,071.89

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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.