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Finding the Fourth Proportional to 504,431.82, 696,123.63 and 274,989.24

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Solution

The fourth proportional to 504,431.82, 696,123.63 and 274,989.24 is: 379,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,431.82 : 696,123.63 = 274,989.24 : x
  2. Step 2: Convert to fraction form
    504,431.82/696,123.63 = 274,989.24/x
  3. Step 3: Cross multiply
    504,431.82x = 696,123.63 × 274,989.24
  4. Step 4: Simplify right side
    504,431.82x = 191,426,507,959.74
  5. Step 5: Solve for x
    x = 191,426,507,959.74/504,431.82
  6. Step 6: Final answer
    x = 379,489.36

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1.5x scale

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.