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Finding the Fourth Proportional to 504,603.14, 696,342.04 and 278,248.64

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Solution

The fourth proportional to 504,603.14, 696,342.04 and 278,248.64 is: 383,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,603.14 : 696,342.04 = 278,248.64 : x
  2. Step 2: Convert to fraction form
    504,603.14/696,342.04 = 278,248.64/x
  3. Step 3: Cross multiply
    504,603.14x = 696,342.04 × 278,248.64
  4. Step 4: Simplify right side
    504,603.14x = 193,756,225,604.83
  5. Step 5: Solve for x
    x = 193,756,225,604.83/504,603.14
  6. Step 6: Final answer
    x = 383,977.45

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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.