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Finding the Fourth Proportional to 589,039.90, 883,559.85 and 402,415.90

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Solution

The fourth proportional to 589,039.90, 883,559.85 and 402,415.90 is: 603,623.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,039.90 : 883,559.85 = 402,415.90 : x
  2. Step 2: Convert to fraction form
    589,039.90/883,559.85 = 402,415.90/x
  3. Step 3: Cross multiply
    589,039.90x = 883,559.85 × 402,415.90
  4. Step 4: Simplify right side
    589,039.90x = 355,558,532,241.62
  5. Step 5: Solve for x
    x = 355,558,532,241.62/589,039.90
  6. Step 6: Final answer
    x = 603,623.85

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Similar ratio
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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.