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Finding the Fourth Proportional to 505,799.06, 697,994.55 and 276,351.41

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Solution

The fourth proportional to 505,799.06, 697,994.55 and 276,351.41 is: 381,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,799.06 : 697,994.55 = 276,351.41 : x
  2. Step 2: Convert to fraction form
    505,799.06/697,994.55 = 276,351.41/x
  3. Step 3: Cross multiply
    505,799.06x = 697,994.55 × 276,351.41
  4. Step 4: Simplify right side
    505,799.06x = 192,891,779,809.80
  5. Step 5: Solve for x
    x = 192,891,779,809.80/505,799.06
  6. Step 6: Final answer
    x = 381,360.50

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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.