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Finding the Fourth Proportional to 293,040.60, 439,560.90 and 193,313.40

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Solution

The fourth proportional to 293,040.60, 439,560.90 and 193,313.40 is: 289,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,040.60 : 439,560.90 = 193,313.40 : x
  2. Step 2: Convert to fraction form
    293,040.60/439,560.90 = 193,313.40/x
  3. Step 3: Cross multiply
    293,040.60x = 439,560.90 × 193,313.40
  4. Step 4: Simplify right side
    293,040.60x = 84,973,012,086.06
  5. Step 5: Solve for x
    x = 84,973,012,086.06/293,040.60
  6. Step 6: Final answer
    x = 289,970.10

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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.