Home / 430,750.23-645,725.98-190,736.30

Finding the Fourth Proportional to 430,750.23, 645,725.98 and 190,736.30

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Solution

The fourth proportional to 430,750.23, 645,725.98 and 190,736.30 is: 285,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,750.23 : 645,725.98 = 190,736.30 : x
  2. Step 2: Convert to fraction form
    430,750.23/645,725.98 = 190,736.30/x
  3. Step 3: Cross multiply
    430,750.23x = 645,725.98 × 190,736.30
  4. Step 4: Simplify right side
    430,750.23x = 123,163,384,239.07
  5. Step 5: Solve for x
    x = 123,163,384,239.07/430,750.23
  6. Step 6: Final answer
    x = 285,927.61

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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.