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Finding the Fourth Proportional to 197,915.80, 296,873.70 and 190,917.40

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Solution

The fourth proportional to 197,915.80, 296,873.70 and 190,917.40 is: 286,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,915.80 : 296,873.70 = 190,917.40 : x
  2. Step 2: Convert to fraction form
    197,915.80/296,873.70 = 190,917.40/x
  3. Step 3: Cross multiply
    197,915.80x = 296,873.70 × 190,917.40
  4. Step 4: Simplify right side
    197,915.80x = 56,678,354,932.38
  5. Step 5: Solve for x
    x = 56,678,354,932.38/197,915.80
  6. Step 6: Final answer
    x = 286,376.10

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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.