Home / 621,921.44-858,241.68-346,276.64

Finding the Fourth Proportional to 621,921.44, 858,241.68 and 346,276.64

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Solution

The fourth proportional to 621,921.44, 858,241.68 and 346,276.64 is: 477,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,921.44 : 858,241.68 = 346,276.64 : x
  2. Step 2: Convert to fraction form
    621,921.44/858,241.68 = 346,276.64/x
  3. Step 3: Cross multiply
    621,921.44x = 858,241.68 × 346,276.64
  4. Step 4: Simplify right side
    621,921.44x = 297,189,045,258.36
  5. Step 5: Solve for x
    x = 297,189,045,258.36/621,921.44
  6. Step 6: Final answer
    x = 477,856.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.