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Finding the Fourth Proportional to 462,576.88, 638,347.80 and 261,368.56

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Solution

The fourth proportional to 462,576.88, 638,347.80 and 261,368.56 is: 360,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,576.88 : 638,347.80 = 261,368.56 : x
  2. Step 2: Convert to fraction form
    462,576.88/638,347.80 = 261,368.56/x
  3. Step 3: Cross multiply
    462,576.88x = 638,347.80 × 261,368.56
  4. Step 4: Simplify right side
    462,576.88x = 166,844,045,265.17
  5. Step 5: Solve for x
    x = 166,844,045,265.17/462,576.88
  6. Step 6: Final answer
    x = 360,683.93

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1.5x scale

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.