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Finding the Fourth Proportional to 424,426.44, 636,679.62 and 124,907.16

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Solution

The fourth proportional to 424,426.44, 636,679.62 and 124,907.16 is: 187,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,426.44 : 636,679.62 = 124,907.16 : x
  2. Step 2: Convert to fraction form
    424,426.44/636,679.62 = 124,907.16/x
  3. Step 3: Cross multiply
    424,426.44x = 636,679.62 × 124,907.16
  4. Step 4: Simplify right side
    424,426.44x = 79,525,843,164.08
  5. Step 5: Solve for x
    x = 79,525,843,164.08/424,426.44
  6. Step 6: Final answer
    x = 187,372.50

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1.5x scale

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.