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Finding the Fourth Proportional to 504,868.06, 696,706.70 and 278,513.50

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Solution

The fourth proportional to 504,868.06, 696,706.70 and 278,513.50 is: 384,342.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,868.06 : 696,706.70 = 278,513.50 : x
  2. Step 2: Convert to fraction form
    504,868.06/696,706.70 = 278,513.50/x
  3. Step 3: Cross multiply
    504,868.06x = 696,706.70 × 278,513.50
  4. Step 4: Simplify right side
    504,868.06x = 194,042,221,490.45
  5. Step 5: Solve for x
    x = 194,042,221,490.45/504,868.06
  6. Step 6: Final answer
    x = 384,342.44

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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.