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Finding the Fourth Proportional to 370,622.92, 511,445.91 and 200,853.40

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Solution

The fourth proportional to 370,622.92, 511,445.91 and 200,853.40 is: 277,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,622.92 : 511,445.91 = 200,853.40 : x
  2. Step 2: Convert to fraction form
    370,622.92/511,445.91 = 200,853.40/x
  3. Step 3: Cross multiply
    370,622.92x = 511,445.91 × 200,853.40
  4. Step 4: Simplify right side
    370,622.92x = 102,725,647,382.36
  5. Step 5: Solve for x
    x = 102,725,647,382.36/370,622.92
  6. Step 6: Final answer
    x = 277,170.25

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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.