Home / 1,556,345.36-2,334,342.70-419,190.79

Finding the Fourth Proportional to 1,556,345.36, 2,334,342.70 and 419,190.79

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Solution

The fourth proportional to 1,556,345.36, 2,334,342.70 and 419,190.79 is: 628,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,345.36 : 2,334,342.70 = 419,190.79 : x
  2. Step 2: Convert to fraction form
    1,556,345.36/2,334,342.70 = 419,190.79/x
  3. Step 3: Cross multiply
    1,556,345.36x = 2,334,342.70 × 419,190.79
  4. Step 4: Simplify right side
    1,556,345.36x = 978,534,960,543.73
  5. Step 5: Solve for x
    x = 978,534,960,543.73/1,556,345.36
  6. Step 6: Final answer
    x = 628,738.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.