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Finding the Fourth Proportional to 389,809.44, 584,714.20 and 94,321.44

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Solution

The fourth proportional to 389,809.44, 584,714.20 and 94,321.44 is: 141,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,809.44 : 584,714.20 = 94,321.44 : x
  2. Step 2: Convert to fraction form
    389,809.44/584,714.20 = 94,321.44/x
  3. Step 3: Cross multiply
    389,809.44x = 584,714.20 × 94,321.44
  4. Step 4: Simplify right side
    389,809.44x = 55,151,085,332.45
  5. Step 5: Solve for x
    x = 55,151,085,332.45/389,809.44
  6. Step 6: Final answer
    x = 141,482.17

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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.