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Finding the Fourth Proportional to 450,750.72, 621,853.69 and 269,359.12

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Solution

The fourth proportional to 450,750.72, 621,853.69 and 269,359.12 is: 371,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,750.72 : 621,853.69 = 269,359.12 : x
  2. Step 2: Convert to fraction form
    450,750.72/621,853.69 = 269,359.12/x
  3. Step 3: Cross multiply
    450,750.72x = 621,853.69 × 269,359.12
  4. Step 4: Simplify right side
    450,750.72x = 167,501,962,707.15
  5. Step 5: Solve for x
    x = 167,501,962,707.15/450,750.72
  6. Step 6: Final answer
    x = 371,606.64

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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.