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Finding the Fourth Proportional to 551,494.58, 760,944.47 and 321,947.69

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Solution

The fourth proportional to 551,494.58, 760,944.47 and 321,947.69 is: 444,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,494.58 : 760,944.47 = 321,947.69 : x
  2. Step 2: Convert to fraction form
    551,494.58/760,944.47 = 321,947.69/x
  3. Step 3: Cross multiply
    551,494.58x = 760,944.47 × 321,947.69
  4. Step 4: Simplify right side
    551,494.58x = 244,984,314,334.77
  5. Step 5: Solve for x
    x = 244,984,314,334.77/551,494.58
  6. Step 6: Final answer
    x = 444,218.90

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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.