Home / 287,327.36-430,696.32-129,666.56

Finding the Fourth Proportional to 287,327.36, 430,696.32 and 129,666.56

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Solution

The fourth proportional to 287,327.36, 430,696.32 and 129,666.56 is: 194,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,327.36 : 430,696.32 = 129,666.56 : x
  2. Step 2: Convert to fraction form
    287,327.36/430,696.32 = 129,666.56/x
  3. Step 3: Cross multiply
    287,327.36x = 430,696.32 × 129,666.56
  4. Step 4: Simplify right side
    287,327.36x = 55,846,910,219.06
  5. Step 5: Solve for x
    x = 55,846,910,219.06/287,327.36
  6. Step 6: Final answer
    x = 194,366.84

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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.