Home / 291,960.56-402,970.07-189,808.22

Finding the Fourth Proportional to 291,960.56, 402,970.07 and 189,808.22

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Solution

The fourth proportional to 291,960.56, 402,970.07 and 189,808.22 is: 261,977.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,960.56 : 402,970.07 = 189,808.22 : x
  2. Step 2: Convert to fraction form
    291,960.56/402,970.07 = 189,808.22/x
  3. Step 3: Cross multiply
    291,960.56x = 402,970.07 × 189,808.22
  4. Step 4: Simplify right side
    291,960.56x = 76,487,031,699.98
  5. Step 5: Solve for x
    x = 76,487,031,699.98/291,960.56
  6. Step 6: Final answer
    x = 261,977.27

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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.