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Finding the Fourth Proportional to 447,206.76, 670,810.14 and 306,538.92

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Solution

The fourth proportional to 447,206.76, 670,810.14 and 306,538.92 is: 459,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,206.76 : 670,810.14 = 306,538.92 : x
  2. Step 2: Convert to fraction form
    447,206.76/670,810.14 = 306,538.92/x
  3. Step 3: Cross multiply
    447,206.76x = 670,810.14 × 306,538.92
  4. Step 4: Simplify right side
    447,206.76x = 205,629,415,840.65
  5. Step 5: Solve for x
    x = 205,629,415,840.65/447,206.76
  6. Step 6: Final answer
    x = 459,808.38

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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.