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Finding the Fourth Proportional to 526,498.02, 726,522.75 and 311,600.16

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Solution

The fourth proportional to 526,498.02, 726,522.75 and 311,600.16 is: 429,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,498.02 : 726,522.75 = 311,600.16 : x
  2. Step 2: Convert to fraction form
    526,498.02/726,522.75 = 311,600.16/x
  3. Step 3: Cross multiply
    526,498.02x = 726,522.75 × 311,600.16
  4. Step 4: Simplify right side
    526,498.02x = 226,384,605,143.64
  5. Step 5: Solve for x
    x = 226,384,605,143.64/526,498.02
  6. Step 6: Final answer
    x = 429,981.87

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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.