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Finding the Fourth Proportional to 484,043.80, 724,683.30 and 470,219.80

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Solution

The fourth proportional to 484,043.80, 724,683.30 and 470,219.80 is: 703,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,043.80 : 724,683.30 = 470,219.80 : x
  2. Step 2: Convert to fraction form
    484,043.80/724,683.30 = 470,219.80/x
  3. Step 3: Cross multiply
    484,043.80x = 724,683.30 × 470,219.80
  4. Step 4: Simplify right side
    484,043.80x = 340,760,436,389.34
  5. Step 5: Solve for x
    x = 340,760,436,389.34/484,043.80
  6. Step 6: Final answer
    x = 703,986.78

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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.