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Finding the Fourth Proportional to 354,860.10, 531,415.35 and 235,887.30

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Solution

The fourth proportional to 354,860.10, 531,415.35 and 235,887.30 is: 353,249.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,860.10 : 531,415.35 = 235,887.30 : x
  2. Step 2: Convert to fraction form
    354,860.10/531,415.35 = 235,887.30/x
  3. Step 3: Cross multiply
    354,860.10x = 531,415.35 × 235,887.30
  4. Step 4: Simplify right side
    354,860.10x = 125,354,132,090.06
  5. Step 5: Solve for x
    x = 125,354,132,090.06/354,860.10
  6. Step 6: Final answer
    x = 353,249.44

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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.