Home / 381,746.80-526,807.56-211,981.36

Finding the Fourth Proportional to 381,746.80, 526,807.56 and 211,981.36

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Solution

The fourth proportional to 381,746.80, 526,807.56 and 211,981.36 is: 292,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,746.80 : 526,807.56 = 211,981.36 : x
  2. Step 2: Convert to fraction form
    381,746.80/526,807.56 = 211,981.36/x
  3. Step 3: Cross multiply
    381,746.80x = 526,807.56 × 211,981.36
  4. Step 4: Simplify right side
    381,746.80x = 111,673,383,027.08
  5. Step 5: Solve for x
    x = 111,673,383,027.08/381,746.80
  6. Step 6: Final answer
    x = 292,532.60

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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.