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Finding the Fourth Proportional to 325,385.12, 448,800 and 298,614.08

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Solution

The fourth proportional to 325,385.12, 448,800 and 298,614.08 is: 411,875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,385.12 : 448,800 = 298,614.08 : x
  2. Step 2: Convert to fraction form
    325,385.12/448,800 = 298,614.08/x
  3. Step 3: Cross multiply
    325,385.12x = 448,800 × 298,614.08
  4. Step 4: Simplify right side
    325,385.12x = 134,017,999,104
  5. Step 5: Solve for x
    x = 134,017,999,104/325,385.12
  6. Step 6: Final answer
    x = 411,875.01

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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.