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Finding the Fourth Proportional to 634,846.28, 876,087.40 and 362,920.20

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Solution

The fourth proportional to 634,846.28, 876,087.40 and 362,920.20 is: 500,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,846.28 : 876,087.40 = 362,920.20 : x
  2. Step 2: Convert to fraction form
    634,846.28/876,087.40 = 362,920.20/x
  3. Step 3: Cross multiply
    634,846.28x = 876,087.40 × 362,920.20
  4. Step 4: Simplify right side
    634,846.28x = 317,949,814,425.48
  5. Step 5: Solve for x
    x = 317,949,814,425.48/634,846.28
  6. Step 6: Final answer
    x = 500,829.61

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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.