Home / 287,256.46-396,583.66-255,333.06

Finding the Fourth Proportional to 287,256.46, 396,583.66 and 255,333.06

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Solution

The fourth proportional to 287,256.46, 396,583.66 and 255,333.06 is: 352,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,256.46 : 396,583.66 = 255,333.06 : x
  2. Step 2: Convert to fraction form
    287,256.46/396,583.66 = 255,333.06/x
  3. Step 3: Cross multiply
    287,256.46x = 396,583.66 × 255,333.06
  4. Step 4: Simplify right side
    287,256.46x = 101,260,919,453.80
  5. Step 5: Solve for x
    x = 101,260,919,453.80/287,256.46
  6. Step 6: Final answer
    x = 352,510.50

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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.