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Finding the Fourth Proportional to 433,903.80, 650,855.70 and 118,360.20

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Solution

The fourth proportional to 433,903.80, 650,855.70 and 118,360.20 is: 177,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,903.80 : 650,855.70 = 118,360.20 : x
  2. Step 2: Convert to fraction form
    433,903.80/650,855.70 = 118,360.20/x
  3. Step 3: Cross multiply
    433,903.80x = 650,855.70 × 118,360.20
  4. Step 4: Simplify right side
    433,903.80x = 77,035,410,823.14
  5. Step 5: Solve for x
    x = 77,035,410,823.14/433,903.80
  6. Step 6: Final answer
    x = 177,540.30

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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.