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Finding the Fourth Proportional to 713,700.06, 984,983.40 and 455,813.88

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Solution

The fourth proportional to 713,700.06, 984,983.40 and 455,813.88 is: 629,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,700.06 : 984,983.40 = 455,813.88 : x
  2. Step 2: Convert to fraction form
    713,700.06/984,983.40 = 455,813.88/x
  3. Step 3: Cross multiply
    713,700.06x = 984,983.40 × 455,813.88
  4. Step 4: Simplify right side
    713,700.06x = 448,969,105,289.59
  5. Step 5: Solve for x
    x = 448,969,105,289.59/713,700.06
  6. Step 6: Final answer
    x = 629,072.53

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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.