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Finding the Fourth Proportional to 281,587.38, 388,588.58 and 152,522.96

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Solution

The fourth proportional to 281,587.38, 388,588.58 and 152,522.96 is: 210,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,587.38 : 388,588.58 = 152,522.96 : x
  2. Step 2: Convert to fraction form
    281,587.38/388,588.58 = 152,522.96/x
  3. Step 3: Cross multiply
    281,587.38x = 388,588.58 × 152,522.96
  4. Step 4: Simplify right side
    281,587.38x = 59,268,680,443.80
  5. Step 5: Solve for x
    x = 59,268,680,443.80/281,587.38
  6. Step 6: Final answer
    x = 210,480.60

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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.