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Finding the Fourth Proportional to 447,085.80, 670,628.70 and 237,133.80

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Solution

The fourth proportional to 447,085.80, 670,628.70 and 237,133.80 is: 355,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,085.80 : 670,628.70 = 237,133.80 : x
  2. Step 2: Convert to fraction form
    447,085.80/670,628.70 = 237,133.80/x
  3. Step 3: Cross multiply
    447,085.80x = 670,628.70 × 237,133.80
  4. Step 4: Simplify right side
    447,085.80x = 159,028,732,020.06
  5. Step 5: Solve for x
    x = 159,028,732,020.06/447,085.80
  6. Step 6: Final answer
    x = 355,700.70

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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.