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Finding the Fourth Proportional to 499,848.09, 689,688.45 and 295,796.88

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Solution

The fourth proportional to 499,848.09, 689,688.45 and 295,796.88 is: 408,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,848.09 : 689,688.45 = 295,796.88 : x
  2. Step 2: Convert to fraction form
    499,848.09/689,688.45 = 295,796.88/x
  3. Step 3: Cross multiply
    499,848.09x = 689,688.45 × 295,796.88
  4. Step 4: Simplify right side
    499,848.09x = 204,007,691,682.04
  5. Step 5: Solve for x
    x = 204,007,691,682.04/499,848.09
  6. Step 6: Final answer
    x = 408,139.38

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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.