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Finding the Fourth Proportional to 333,878.60, 501,206.70 and 216,039.80

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Solution

The fourth proportional to 333,878.60, 501,206.70 and 216,039.80 is: 324,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,878.60 : 501,206.70 = 216,039.80 : x
  2. Step 2: Convert to fraction form
    333,878.60/501,206.70 = 216,039.80/x
  3. Step 3: Cross multiply
    333,878.60x = 501,206.70 × 216,039.80
  4. Step 4: Simplify right side
    333,878.60x = 108,280,595,226.66
  5. Step 5: Solve for x
    x = 108,280,595,226.66/333,878.60
  6. Step 6: Final answer
    x = 324,311.28

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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.