Home / 712,823,692.14-983,647,191.81-395,300,317.29

Finding the Fourth Proportional to 712,823,692.14, 983,647,191.81 and 395,300,317.29

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Solution

The fourth proportional to 712,823,692.14, 983,647,191.81 and 395,300,317.29 is: 545,486,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,823,692.14 : 983,647,191.81 = 395,300,317.29 : x
  2. Step 2: Convert to fraction form
    712,823,692.14/983,647,191.81 = 395,300,317.29/x
  3. Step 3: Cross multiply
    712,823,692.14x = 983,647,191.81 × 395,300,317.29
  4. Step 4: Simplify right side
    712,823,692.14x = 388,836,047,023,910,464
  5. Step 5: Solve for x
    x = 388,836,047,023,910,464/712,823,692.14
  6. Step 6: Final answer
    x = 545,486,985.51

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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.