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Finding the Fourth Proportional to 461,340.96, 636,912.09 and 300,115.32

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Solution

The fourth proportional to 461,340.96, 636,912.09 and 300,115.32 is: 414,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,340.96 : 636,912.09 = 300,115.32 : x
  2. Step 2: Convert to fraction form
    461,340.96/636,912.09 = 300,115.32/x
  3. Step 3: Cross multiply
    461,340.96x = 636,912.09 × 300,115.32
  4. Step 4: Simplify right side
    461,340.96x = 191,147,075,702.22
  5. Step 5: Solve for x
    x = 191,147,075,702.22/461,340.96
  6. Step 6: Final answer
    x = 414,329.30

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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.