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Finding the Fourth Proportional to 284,813.01, 393,041.30 and 163,910.25

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Solution

The fourth proportional to 284,813.01, 393,041.30 and 163,910.25 is: 226,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,813.01 : 393,041.30 = 163,910.25 : x
  2. Step 2: Convert to fraction form
    284,813.01/393,041.30 = 163,910.25/x
  3. Step 3: Cross multiply
    284,813.01x = 393,041.30 × 163,910.25
  4. Step 4: Simplify right side
    284,813.01x = 64,423,496,494.15
  5. Step 5: Solve for x
    x = 64,423,496,494.15/284,813.01
  6. Step 6: Final answer
    x = 226,195.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.