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Finding the Fourth Proportional to 578,329.16, 867,675.22 and 347,783.50

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Solution

The fourth proportional to 578,329.16, 867,675.22 and 347,783.50 is: 521,784.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,329.16 : 867,675.22 = 347,783.50 : x
  2. Step 2: Convert to fraction form
    578,329.16/867,675.22 = 347,783.50/x
  3. Step 3: Cross multiply
    578,329.16x = 867,675.22 × 347,783.50
  4. Step 4: Simplify right side
    578,329.16x = 301,763,124,874.87
  5. Step 5: Solve for x
    x = 301,763,124,874.87/578,329.16
  6. Step 6: Final answer
    x = 521,784.38

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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.