Home / 328,380.47-453,210.96-199,383.11

Finding the Fourth Proportional to 328,380.47, 453,210.96 and 199,383.11

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Solution

The fourth proportional to 328,380.47, 453,210.96 and 199,383.11 is: 275,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,380.47 : 453,210.96 = 199,383.11 : x
  2. Step 2: Convert to fraction form
    328,380.47/453,210.96 = 199,383.11/x
  3. Step 3: Cross multiply
    328,380.47x = 453,210.96 × 199,383.11
  4. Step 4: Simplify right side
    328,380.47x = 90,362,610,690.89
  5. Step 5: Solve for x
    x = 90,362,610,690.89/328,380.47
  6. Step 6: Final answer
    x = 275,176.57

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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.