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Finding the Fourth Proportional to 504,847.40, 696,691.40 and 275,409.59

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Solution

The fourth proportional to 504,847.40, 696,691.40 and 275,409.59 is: 380,066.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,847.40 : 696,691.40 = 275,409.59 : x
  2. Step 2: Convert to fraction form
    504,847.40/696,691.40 = 275,409.59/x
  3. Step 3: Cross multiply
    504,847.40x = 696,691.40 × 275,409.59
  4. Step 4: Simplify right side
    504,847.40x = 191,875,487,970.02
  5. Step 5: Solve for x
    x = 191,875,487,970.02/504,847.40
  6. Step 6: Final answer
    x = 380,066.31

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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.