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Finding the Fourth Proportional to 384,698.08, 530,873.52 and 214,933.28

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Solution

The fourth proportional to 384,698.08, 530,873.52 and 214,933.28 is: 296,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,698.08 : 530,873.52 = 214,933.28 : x
  2. Step 2: Convert to fraction form
    384,698.08/530,873.52 = 214,933.28/x
  3. Step 3: Cross multiply
    384,698.08x = 530,873.52 × 214,933.28
  4. Step 4: Simplify right side
    384,698.08x = 114,102,386,918.75
  5. Step 5: Solve for x
    x = 114,102,386,918.75/384,698.08
  6. Step 6: Final answer
    x = 296,602.43

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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.