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Finding the Fourth Proportional to 341,661.80, 512,492.70 and 194,205.80

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Solution

The fourth proportional to 341,661.80, 512,492.70 and 194,205.80 is: 291,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,661.80 : 512,492.70 = 194,205.80 : x
  2. Step 2: Convert to fraction form
    341,661.80/512,492.70 = 194,205.80/x
  3. Step 3: Cross multiply
    341,661.80x = 512,492.70 × 194,205.80
  4. Step 4: Simplify right side
    341,661.80x = 99,529,054,797.66
  5. Step 5: Solve for x
    x = 99,529,054,797.66/341,661.80
  6. Step 6: Final answer
    x = 291,308.70

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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.