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Finding the Fourth Proportional to 634,806.82, 876,088.83 and 348,382.18

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Solution

The fourth proportional to 634,806.82, 876,088.83 and 348,382.18 is: 480,797.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,806.82 : 876,088.83 = 348,382.18 : x
  2. Step 2: Convert to fraction form
    634,806.82/876,088.83 = 348,382.18/x
  3. Step 3: Cross multiply
    634,806.82x = 876,088.83 × 348,382.18
  4. Step 4: Simplify right side
    634,806.82x = 305,213,736,469.05
  5. Step 5: Solve for x
    x = 305,213,736,469.05/634,806.82
  6. Step 6: Final answer
    x = 480,797.82

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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.