Home / 320,326.81-441,977.66-191,240.16

Finding the Fourth Proportional to 320,326.81, 441,977.66 and 191,240.16

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Solution

The fourth proportional to 320,326.81, 441,977.66 and 191,240.16 is: 263,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,326.81 : 441,977.66 = 191,240.16 : x
  2. Step 2: Convert to fraction form
    320,326.81/441,977.66 = 191,240.16/x
  3. Step 3: Cross multiply
    320,326.81x = 441,977.66 × 191,240.16
  4. Step 4: Simplify right side
    320,326.81x = 84,523,881,323.27
  5. Step 5: Solve for x
    x = 84,523,881,323.27/320,326.81
  6. Step 6: Final answer
    x = 263,867.64

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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.