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Finding the Fourth Proportional to 293,564.40, 440,346.60 and 210,620.40

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Solution

The fourth proportional to 293,564.40, 440,346.60 and 210,620.40 is: 315,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,564.40 : 440,346.60 = 210,620.40 : x
  2. Step 2: Convert to fraction form
    293,564.40/440,346.60 = 210,620.40/x
  3. Step 3: Cross multiply
    293,564.40x = 440,346.60 × 210,620.40
  4. Step 4: Simplify right side
    293,564.40x = 92,745,977,030.64
  5. Step 5: Solve for x
    x = 92,745,977,030.64/293,564.40
  6. Step 6: Final answer
    x = 315,930.60

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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.