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Finding the Fourth Proportional to 608,699.58, 840,274.48 and 363,770.78

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Solution

The fourth proportional to 608,699.58, 840,274.48 and 363,770.78 is: 502,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,699.58 : 840,274.48 = 363,770.78 : x
  2. Step 2: Convert to fraction form
    608,699.58/840,274.48 = 363,770.78/x
  3. Step 3: Cross multiply
    608,699.58x = 840,274.48 × 363,770.78
  4. Step 4: Simplify right side
    608,699.58x = 305,667,303,003.69
  5. Step 5: Solve for x
    x = 305,667,303,003.69/608,699.58
  6. Step 6: Final answer
    x = 502,164.47

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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.