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Finding the Fourth Proportional to 556,576.40, 768,076.93 and 301,927.59

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Solution

The fourth proportional to 556,576.40, 768,076.93 and 301,927.59 is: 416,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,576.40 : 768,076.93 = 301,927.59 : x
  2. Step 2: Convert to fraction form
    556,576.40/768,076.93 = 301,927.59/x
  3. Step 3: Cross multiply
    556,576.40x = 768,076.93 × 301,927.59
  4. Step 4: Simplify right side
    556,576.40x = 231,903,616,409.50
  5. Step 5: Solve for x
    x = 231,903,616,409.50/556,576.40
  6. Step 6: Final answer
    x = 416,660.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.