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Finding the Fourth Proportional to 381,658.04, 526,667.54 and 211,881.23

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Solution

The fourth proportional to 381,658.04, 526,667.54 and 211,881.23 is: 292,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,658.04 : 526,667.54 = 211,881.23 : x
  2. Step 2: Convert to fraction form
    381,658.04/526,667.54 = 211,881.23/x
  3. Step 3: Cross multiply
    381,658.04x = 526,667.54 × 211,881.23
  4. Step 4: Simplify right side
    381,658.04x = 111,590,969,208.79
  5. Step 5: Solve for x
    x = 111,590,969,208.79/381,658.04
  6. Step 6: Final answer
    x = 292,384.69

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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.