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Finding the Fourth Proportional to 505,557.38, 697,665.44 and 276,114.77

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Solution

The fourth proportional to 505,557.38, 697,665.44 and 276,114.77 is: 381,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,557.38 : 697,665.44 = 276,114.77 : x
  2. Step 2: Convert to fraction form
    505,557.38/697,665.44 = 276,114.77/x
  3. Step 3: Cross multiply
    505,557.38x = 697,665.44 × 276,114.77
  4. Step 4: Simplify right side
    505,557.38x = 192,635,732,502.55
  5. Step 5: Solve for x
    x = 192,635,732,502.55/505,557.38
  6. Step 6: Final answer
    x = 381,036.34

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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.