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Finding the Fourth Proportional to 385,234.17, 577,165.59 and 328,498.70

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Solution

The fourth proportional to 385,234.17, 577,165.59 and 328,498.70 is: 492,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,234.17 : 577,165.59 = 328,498.70 : x
  2. Step 2: Convert to fraction form
    385,234.17/577,165.59 = 328,498.70/x
  3. Step 3: Cross multiply
    385,234.17x = 577,165.59 × 328,498.70
  4. Step 4: Simplify right side
    385,234.17x = 189,598,143,113.91
  5. Step 5: Solve for x
    x = 189,598,143,113.91/385,234.17
  6. Step 6: Final answer
    x = 492,163.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.