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Finding the Fourth Proportional to 383,616.66, 529,442.28 and 220,337.40

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Solution

The fourth proportional to 383,616.66, 529,442.28 and 220,337.40 is: 304,095.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,616.66 : 529,442.28 = 220,337.40 : x
  2. Step 2: Convert to fraction form
    383,616.66/529,442.28 = 220,337.40/x
  3. Step 3: Cross multiply
    383,616.66x = 529,442.28 × 220,337.40
  4. Step 4: Simplify right side
    383,616.66x = 116,655,935,425.27
  5. Step 5: Solve for x
    x = 116,655,935,425.27/383,616.66
  6. Step 6: Final answer
    x = 304,095.07

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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.