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Finding the Fourth Proportional to 713,203.99, 984,322.38 and 441,359.51

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Solution

The fourth proportional to 713,203.99, 984,322.38 and 441,359.51 is: 609,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,203.99 : 984,322.38 = 441,359.51 : x
  2. Step 2: Convert to fraction form
    713,203.99/984,322.38 = 441,359.51/x
  3. Step 3: Cross multiply
    713,203.99x = 984,322.38 × 441,359.51
  4. Step 4: Simplify right side
    713,203.99x = 434,440,040,338.08
  5. Step 5: Solve for x
    x = 434,440,040,338.08/713,203.99
  6. Step 6: Final answer
    x = 609,138.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.