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Finding the Fourth Proportional to 505,770.51, 698,011.56 and 276,362.63

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Solution

The fourth proportional to 505,770.51, 698,011.56 and 276,362.63 is: 381,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,770.51 : 698,011.56 = 276,362.63 : x
  2. Step 2: Convert to fraction form
    505,770.51/698,011.56 = 276,362.63/x
  3. Step 3: Cross multiply
    505,770.51x = 698,011.56 × 276,362.63
  4. Step 4: Simplify right side
    505,770.51x = 192,904,307,001.95
  5. Step 5: Solve for x
    x = 192,904,307,001.95/505,770.51
  6. Step 6: Final answer
    x = 381,406.79

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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.