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Finding the Fourth Proportional to 662,605.80, 993,908.70 and 589,122.60

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Solution

The fourth proportional to 662,605.80, 993,908.70 and 589,122.60 is: 883,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,605.80 : 993,908.70 = 589,122.60 : x
  2. Step 2: Convert to fraction form
    662,605.80/993,908.70 = 589,122.60/x
  3. Step 3: Cross multiply
    662,605.80x = 993,908.70 × 589,122.60
  4. Step 4: Simplify right side
    662,605.80x = 585,534,077,506.62
  5. Step 5: Solve for x
    x = 585,534,077,506.62/662,605.80
  6. Step 6: Final answer
    x = 883,683.90

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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.