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Finding the Fourth Proportional to 293,313.60, 439,840.80 and 115,761.60

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Solution

The fourth proportional to 293,313.60, 439,840.80 and 115,761.60 is: 173,591.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,313.60 : 439,840.80 = 115,761.60 : x
  2. Step 2: Convert to fraction form
    293,313.60/439,840.80 = 115,761.60/x
  3. Step 3: Cross multiply
    293,313.60x = 439,840.80 × 115,761.60
  4. Step 4: Simplify right side
    293,313.60x = 50,916,674,753.28
  5. Step 5: Solve for x
    x = 50,916,674,753.28/293,313.60
  6. Step 6: Final answer
    x = 173,591.25

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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.