Home / 313,563.06-432,551.15-198,638.94

Finding the Fourth Proportional to 313,563.06, 432,551.15 and 198,638.94

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Solution

The fourth proportional to 313,563.06, 432,551.15 and 198,638.94 is: 274,016.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,563.06 : 432,551.15 = 198,638.94 : x
  2. Step 2: Convert to fraction form
    313,563.06/432,551.15 = 198,638.94/x
  3. Step 3: Cross multiply
    313,563.06x = 432,551.15 × 198,638.94
  4. Step 4: Simplify right side
    313,563.06x = 85,921,501,931.78
  5. Step 5: Solve for x
    x = 85,921,501,931.78/313,563.06
  6. Step 6: Final answer
    x = 274,016.66

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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.