Home / 353,127.20-529,690.80-187,239.20

Finding the Fourth Proportional to 353,127.20, 529,690.80 and 187,239.20

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Solution

The fourth proportional to 353,127.20, 529,690.80 and 187,239.20 is: 280,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,127.20 : 529,690.80 = 187,239.20 : x
  2. Step 2: Convert to fraction form
    353,127.20/529,690.80 = 187,239.20/x
  3. Step 3: Cross multiply
    353,127.20x = 529,690.80 × 187,239.20
  4. Step 4: Simplify right side
    353,127.20x = 99,178,881,639.36
  5. Step 5: Solve for x
    x = 99,178,881,639.36/353,127.20
  6. Step 6: Final answer
    x = 280,858.80

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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.