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Finding the Fourth Proportional to 381,199.95, 526,062.93 and 209,126.73

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Solution

The fourth proportional to 381,199.95, 526,062.93 and 209,126.73 is: 288,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,199.95 : 526,062.93 = 209,126.73 : x
  2. Step 2: Convert to fraction form
    381,199.95/526,062.93 = 209,126.73/x
  3. Step 3: Cross multiply
    381,199.95x = 526,062.93 × 209,126.73
  4. Step 4: Simplify right side
    381,199.95x = 110,013,820,325.12
  5. Step 5: Solve for x
    x = 110,013,820,325.12/381,199.95
  6. Step 6: Final answer
    x = 288,598.73

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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.