Home / 328,949.09-453,949.85-185,718.36

Finding the Fourth Proportional to 328,949.09, 453,949.85 and 185,718.36

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Solution

The fourth proportional to 328,949.09, 453,949.85 and 185,718.36 is: 256,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,949.09 : 453,949.85 = 185,718.36 : x
  2. Step 2: Convert to fraction form
    328,949.09/453,949.85 = 185,718.36/x
  3. Step 3: Cross multiply
    328,949.09x = 453,949.85 × 185,718.36
  4. Step 4: Simplify right side
    328,949.09x = 84,306,822,128.54
  5. Step 5: Solve for x
    x = 84,306,822,128.54/328,949.09
  6. Step 6: Final answer
    x = 256,291.40

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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.