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Finding the Fourth Proportional to 335,722.40, 503,583.60 and 186,423.20

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Solution

The fourth proportional to 335,722.40, 503,583.60 and 186,423.20 is: 279,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,722.40 : 503,583.60 = 186,423.20 : x
  2. Step 2: Convert to fraction form
    335,722.40/503,583.60 = 186,423.20/x
  3. Step 3: Cross multiply
    335,722.40x = 503,583.60 × 186,423.20
  4. Step 4: Simplify right side
    335,722.40x = 93,879,666,179.52
  5. Step 5: Solve for x
    x = 93,879,666,179.52/335,722.40
  6. Step 6: Final answer
    x = 279,634.80

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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.