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Finding the Fourth Proportional to 341,653.80, 512,480.70 and 217,237.80

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Solution

The fourth proportional to 341,653.80, 512,480.70 and 217,237.80 is: 325,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,653.80 : 512,480.70 = 217,237.80 : x
  2. Step 2: Convert to fraction form
    341,653.80/512,480.70 = 217,237.80/x
  3. Step 3: Cross multiply
    341,653.80x = 512,480.70 × 217,237.80
  4. Step 4: Simplify right side
    341,653.80x = 111,330,179,810.46
  5. Step 5: Solve for x
    x = 111,330,179,810.46/341,653.80
  6. Step 6: Final answer
    x = 325,856.70

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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.