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Finding the Fourth Proportional to 278,663.37, 384,714.84 and 183,446.85

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Solution

The fourth proportional to 278,663.37, 384,714.84 and 183,446.85 is: 253,261.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,663.37 : 384,714.84 = 183,446.85 : x
  2. Step 2: Convert to fraction form
    278,663.37/384,714.84 = 183,446.85/x
  3. Step 3: Cross multiply
    278,663.37x = 384,714.84 × 183,446.85
  4. Step 4: Simplify right side
    278,663.37x = 70,574,725,546.25
  5. Step 5: Solve for x
    x = 70,574,725,546.25/278,663.37
  6. Step 6: Final answer
    x = 253,261.58

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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.