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Finding the Fourth Proportional to 355,216.10, 532,824.15 and 256,072.10

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Solution

The fourth proportional to 355,216.10, 532,824.15 and 256,072.10 is: 384,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,216.10 : 532,824.15 = 256,072.10 : x
  2. Step 2: Convert to fraction form
    355,216.10/532,824.15 = 256,072.10/x
  3. Step 3: Cross multiply
    355,216.10x = 532,824.15 × 256,072.10
  4. Step 4: Simplify right side
    355,216.10x = 136,441,399,021.22
  5. Step 5: Solve for x
    x = 136,441,399,021.22/355,216.10
  6. Step 6: Final answer
    x = 384,108.15

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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.