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Finding the Fourth Proportional to 201,028.80, 301,543.20 and 197,918.40

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Solution

The fourth proportional to 201,028.80, 301,543.20 and 197,918.40 is: 296,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,028.80 : 301,543.20 = 197,918.40 : x
  2. Step 2: Convert to fraction form
    201,028.80/301,543.20 = 197,918.40/x
  3. Step 3: Cross multiply
    201,028.80x = 301,543.20 × 197,918.40
  4. Step 4: Simplify right side
    201,028.80x = 59,680,947,674.88
  5. Step 5: Solve for x
    x = 59,680,947,674.88/201,028.80
  6. Step 6: Final answer
    x = 296,877.60

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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.