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Finding the Fourth Proportional to 504,221, 695,824.98 and 277,866.50

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Solution

The fourth proportional to 504,221, 695,824.98 and 277,866.50 is: 383,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,221 : 695,824.98 = 277,866.50 : x
  2. Step 2: Convert to fraction form
    504,221/695,824.98 = 277,866.50/x
  3. Step 3: Cross multiply
    504,221x = 695,824.98 × 277,866.50
  4. Step 4: Simplify right side
    504,221x = 193,346,451,805.17
  5. Step 5: Solve for x
    x = 193,346,451,805.17/504,221
  6. Step 6: Final answer
    x = 383,455.77

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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.