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Finding the Fourth Proportional to 613,337.15, 846,405.21 and 341,399.20

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Solution

The fourth proportional to 613,337.15, 846,405.21 and 341,399.20 is: 471,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,337.15 : 846,405.21 = 341,399.20 : x
  2. Step 2: Convert to fraction form
    613,337.15/846,405.21 = 341,399.20/x
  3. Step 3: Cross multiply
    613,337.15x = 846,405.21 × 341,399.20
  4. Step 4: Simplify right side
    613,337.15x = 288,962,057,337.81
  5. Step 5: Solve for x
    x = 288,962,057,337.81/613,337.15
  6. Step 6: Final answer
    x = 471,130.86

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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.