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Finding the Fourth Proportional to 827,809.40, 1,241,859.90 and 295,639.40

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Solution

The fourth proportional to 827,809.40, 1,241,859.90 and 295,639.40 is: 443,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,809.40 : 1,241,859.90 = 295,639.40 : x
  2. Step 2: Convert to fraction form
    827,809.40/1,241,859.90 = 295,639.40/x
  3. Step 3: Cross multiply
    827,809.40x = 1,241,859.90 × 295,639.40
  4. Step 4: Simplify right side
    827,809.40x = 367,142,715,720.06
  5. Step 5: Solve for x
    x = 367,142,715,720.06/827,809.40
  6. Step 6: Final answer
    x = 443,511.17

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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.