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Finding the Fourth Proportional to 358,084.40, 536,478.60 and 170,682.80

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Solution

The fourth proportional to 358,084.40, 536,478.60 and 170,682.80 is: 255,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,084.40 : 536,478.60 = 170,682.80 : x
  2. Step 2: Convert to fraction form
    358,084.40/536,478.60 = 170,682.80/x
  3. Step 3: Cross multiply
    358,084.40x = 536,478.60 × 170,682.80
  4. Step 4: Simplify right side
    358,084.40x = 91,567,669,588.08
  5. Step 5: Solve for x
    x = 91,567,669,588.08/358,084.40
  6. Step 6: Final answer
    x = 255,715.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.