Home / 555,190.07-766,845.44-401,985.71

Finding the Fourth Proportional to 555,190.07, 766,845.44 and 401,985.71

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Solution

The fourth proportional to 555,190.07, 766,845.44 and 401,985.71 is: 555,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,190.07 : 766,845.44 = 401,985.71 : x
  2. Step 2: Convert to fraction form
    555,190.07/766,845.44 = 401,985.71/x
  3. Step 3: Cross multiply
    555,190.07x = 766,845.44 × 401,985.71
  4. Step 4: Simplify right side
    555,190.07x = 308,260,902,814.51
  5. Step 5: Solve for x
    x = 308,260,902,814.51/555,190.07
  6. Step 6: Final answer
    x = 555,234.90

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1.5x scale

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.