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Finding the Fourth Proportional to 444,128.76, 612,725.58 and 282,954.96

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Solution

The fourth proportional to 444,128.76, 612,725.58 and 282,954.96 is: 390,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,128.76 : 612,725.58 = 282,954.96 : x
  2. Step 2: Convert to fraction form
    444,128.76/612,725.58 = 282,954.96/x
  3. Step 3: Cross multiply
    444,128.76x = 612,725.58 × 282,954.96
  4. Step 4: Simplify right side
    444,128.76x = 173,373,741,979.88
  5. Step 5: Solve for x
    x = 173,373,741,979.88/444,128.76
  6. Step 6: Final answer
    x = 390,368.19

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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.