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Finding the Fourth Proportional to 300,384.51, 414,531.95 and 162,563.46

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Solution

The fourth proportional to 300,384.51, 414,531.95 and 162,563.46 is: 224,338.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,384.51 : 414,531.95 = 162,563.46 : x
  2. Step 2: Convert to fraction form
    300,384.51/414,531.95 = 162,563.46/x
  3. Step 3: Cross multiply
    300,384.51x = 414,531.95 × 162,563.46
  4. Step 4: Simplify right side
    300,384.51x = 67,387,748,072.55
  5. Step 5: Solve for x
    x = 67,387,748,072.55/300,384.51
  6. Step 6: Final answer
    x = 224,338.29

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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.