Home / 821,066.40-1,232,521.20-634,903.20

Finding the Fourth Proportional to 821,066.40, 1,232,521.20 and 634,903.20

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Solution

The fourth proportional to 821,066.40, 1,232,521.20 and 634,903.20 is: 953,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,066.40 : 1,232,521.20 = 634,903.20 : x
  2. Step 2: Convert to fraction form
    821,066.40/1,232,521.20 = 634,903.20/x
  3. Step 3: Cross multiply
    821,066.40x = 1,232,521.20 × 634,903.20
  4. Step 4: Simplify right side
    821,066.40x = 782,531,653,947.84
  5. Step 5: Solve for x
    x = 782,531,653,947.84/821,066.40
  6. Step 6: Final answer
    x = 953,067.44

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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.