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Finding the Fourth Proportional to 271,824.30, 407,736.45 and 258,702.30

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Solution

The fourth proportional to 271,824.30, 407,736.45 and 258,702.30 is: 388,053.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,824.30 : 407,736.45 = 258,702.30 : x
  2. Step 2: Convert to fraction form
    271,824.30/407,736.45 = 258,702.30/x
  3. Step 3: Cross multiply
    271,824.30x = 407,736.45 × 258,702.30
  4. Step 4: Simplify right side
    271,824.30x = 105,482,357,408.84
  5. Step 5: Solve for x
    x = 105,482,357,408.84/271,824.30
  6. Step 6: Final answer
    x = 388,053.45

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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.