Home / 380,853.23-525,577.45-211,087.35

Finding the Fourth Proportional to 380,853.23, 525,577.45 and 211,087.35

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Solution

The fourth proportional to 380,853.23, 525,577.45 and 211,087.35 is: 291,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,853.23 : 525,577.45 = 211,087.35 : x
  2. Step 2: Convert to fraction form
    380,853.23/525,577.45 = 211,087.35/x
  3. Step 3: Cross multiply
    380,853.23x = 525,577.45 × 211,087.35
  4. Step 4: Simplify right side
    380,853.23x = 110,942,751,140.26
  5. Step 5: Solve for x
    x = 110,942,751,140.26/380,853.23
  6. Step 6: Final answer
    x = 291,300.54

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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.