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Finding the Fourth Proportional to 504,803.48, 696,597.18 and 278,448.44

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Solution

The fourth proportional to 504,803.48, 696,597.18 and 278,448.44 is: 384,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,803.48 : 696,597.18 = 278,448.44 : x
  2. Step 2: Convert to fraction form
    504,803.48/696,597.18 = 278,448.44/x
  3. Step 3: Cross multiply
    504,803.48x = 696,597.18 × 278,448.44
  4. Step 4: Simplify right side
    504,803.48x = 193,966,398,079.40
  5. Step 5: Solve for x
    x = 193,966,398,079.40/504,803.48
  6. Step 6: Final answer
    x = 384,241.40

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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.