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Finding the Fourth Proportional to 350,191.20, 525,286.80 and 100,898.40

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Solution

The fourth proportional to 350,191.20, 525,286.80 and 100,898.40 is: 151,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,191.20 : 525,286.80 = 100,898.40 : x
  2. Step 2: Convert to fraction form
    350,191.20/525,286.80 = 100,898.40/x
  3. Step 3: Cross multiply
    350,191.20x = 525,286.80 × 100,898.40
  4. Step 4: Simplify right side
    350,191.20x = 53,000,597,661.12
  5. Step 5: Solve for x
    x = 53,000,597,661.12/350,191.20
  6. Step 6: Final answer
    x = 151,347.60

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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.