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Finding the Fourth Proportional to 523,620.94, 785,415.78 and 144,564.82

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Solution

The fourth proportional to 523,620.94, 785,415.78 and 144,564.82 is: 216,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,620.94 : 785,415.78 = 144,564.82 : x
  2. Step 2: Convert to fraction form
    523,620.94/785,415.78 = 144,564.82/x
  3. Step 3: Cross multiply
    523,620.94x = 785,415.78 × 144,564.82
  4. Step 4: Simplify right side
    523,620.94x = 113,543,490,860.86
  5. Step 5: Solve for x
    x = 113,543,490,860.86/523,620.94
  6. Step 6: Final answer
    x = 216,842.91

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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.