Home / 430,940.09-646,110.34-190,923.77

Finding the Fourth Proportional to 430,940.09, 646,110.34 and 190,923.77

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Solution

The fourth proportional to 430,940.09, 646,110.34 and 190,923.77 is: 286,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,940.09 : 646,110.34 = 190,923.77 : x
  2. Step 2: Convert to fraction form
    430,940.09/646,110.34 = 190,923.77/x
  3. Step 3: Cross multiply
    430,940.09x = 646,110.34 × 190,923.77
  4. Step 4: Simplify right side
    430,940.09x = 123,357,821,948.78
  5. Step 5: Solve for x
    x = 123,357,821,948.78/430,940.09
  6. Step 6: Final answer
    x = 286,252.83

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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.