Home / 919,329,664.40-1,378,994,496.60-804,538,408.40

Finding the Fourth Proportional to 919,329,664.40, 1,378,994,496.60 and 804,538,408.40

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Solution

The fourth proportional to 919,329,664.40, 1,378,994,496.60 and 804,538,408.40 is: 1,206,807,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,329,664.40 : 1,378,994,496.60 = 804,538,408.40 : x
  2. Step 2: Convert to fraction form
    919,329,664.40/1,378,994,496.60 = 804,538,408.40/x
  3. Step 3: Cross multiply
    919,329,664.40x = 1,378,994,496.60 × 804,538,408.40
  4. Step 4: Simplify right side
    919,329,664.40x = 1,109,454,037,486,923,136
  5. Step 5: Solve for x
    x = 1,109,454,037,486,923,136/919,329,664.40
  6. Step 6: Final answer
    x = 1,206,807,612.60

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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.