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Finding the Fourth Proportional to 381,592.17, 526,598.24 and 209,521.28

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Solution

The fourth proportional to 381,592.17, 526,598.24 and 209,521.28 is: 289,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,592.17 : 526,598.24 = 209,521.28 : x
  2. Step 2: Convert to fraction form
    381,592.17/526,598.24 = 209,521.28/x
  3. Step 3: Cross multiply
    381,592.17x = 526,598.24 × 209,521.28
  4. Step 4: Simplify right side
    381,592.17x = 110,333,537,290.55
  5. Step 5: Solve for x
    x = 110,333,537,290.55/381,592.17
  6. Step 6: Final answer
    x = 289,139.94

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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.