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Finding the Fourth Proportional to 392,965.58, 589,860.66 and 348,273.02

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Solution

The fourth proportional to 392,965.58, 589,860.66 and 348,273.02 is: 522,774.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,965.58 : 589,860.66 = 348,273.02 : x
  2. Step 2: Convert to fraction form
    392,965.58/589,860.66 = 348,273.02/x
  3. Step 3: Cross multiply
    392,965.58x = 589,860.66 × 348,273.02
  4. Step 4: Simplify right side
    392,965.58x = 205,432,550,488.09
  5. Step 5: Solve for x
    x = 205,432,550,488.09/392,965.58
  6. Step 6: Final answer
    x = 522,774.93

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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.