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Finding the Fourth Proportional to 291,612.84, 437,419.26 and 69,996.84

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Solution

The fourth proportional to 291,612.84, 437,419.26 and 69,996.84 is: 104,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,612.84 : 437,419.26 = 69,996.84 : x
  2. Step 2: Convert to fraction form
    291,612.84/437,419.26 = 69,996.84/x
  3. Step 3: Cross multiply
    291,612.84x = 437,419.26 × 69,996.84
  4. Step 4: Simplify right side
    291,612.84x = 30,617,965,955.14
  5. Step 5: Solve for x
    x = 30,617,965,955.14/291,612.84
  6. Step 6: Final answer
    x = 104,995.26

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Double scale
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Similar ratio
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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.