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Finding the Fourth Proportional to 504,893.84, 696,753.45 and 278,539.34

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Solution

The fourth proportional to 504,893.84, 696,753.45 and 278,539.34 is: 384,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,893.84 : 696,753.45 = 278,539.34 : x
  2. Step 2: Convert to fraction form
    504,893.84/696,753.45 = 278,539.34/x
  3. Step 3: Cross multiply
    504,893.84x = 696,753.45 × 278,539.34
  4. Step 4: Simplify right side
    504,893.84x = 194,073,242,621.96
  5. Step 5: Solve for x
    x = 194,073,242,621.96/504,893.84
  6. Step 6: Final answer
    x = 384,384.26

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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.