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Finding the Fourth Proportional to 297,643.60, 446,465.40 and 203,165.20

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Solution

The fourth proportional to 297,643.60, 446,465.40 and 203,165.20 is: 304,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,643.60 : 446,465.40 = 203,165.20 : x
  2. Step 2: Convert to fraction form
    297,643.60/446,465.40 = 203,165.20/x
  3. Step 3: Cross multiply
    297,643.60x = 446,465.40 × 203,165.20
  4. Step 4: Simplify right side
    297,643.60x = 90,706,232,284.08
  5. Step 5: Solve for x
    x = 90,706,232,284.08/297,643.60
  6. Step 6: Final answer
    x = 304,747.80

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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.