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Finding the Fourth Proportional to 444,780, 613,798.56 and 243,576

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Solution

The fourth proportional to 444,780, 613,798.56 and 243,576 is: 336,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,780 : 613,798.56 = 243,576 : x
  2. Step 2: Convert to fraction form
    444,780/613,798.56 = 243,576/x
  3. Step 3: Cross multiply
    444,780x = 613,798.56 × 243,576
  4. Step 4: Simplify right side
    444,780x = 149,506,598,050.56
  5. Step 5: Solve for x
    x = 149,506,598,050.56/444,780
  6. Step 6: Final answer
    x = 336,136.06

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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.