Home / 691,716,400.20-1,037,574,600.30-624,993,982.65

Finding the Fourth Proportional to 691,716,400.20, 1,037,574,600.30 and 624,993,982.65

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Solution

The fourth proportional to 691,716,400.20, 1,037,574,600.30 and 624,993,982.65 is: 937,490,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,716,400.20 : 1,037,574,600.30 = 624,993,982.65 : x
  2. Step 2: Convert to fraction form
    691,716,400.20/1,037,574,600.30 = 624,993,982.65/x
  3. Step 3: Cross multiply
    691,716,400.20x = 1,037,574,600.30 × 624,993,982.65
  4. Step 4: Simplify right side
    691,716,400.20x = 648,477,881,737,978,880
  5. Step 5: Solve for x
    x = 648,477,881,737,978,880/691,716,400.20
  6. Step 6: Final answer
    x = 937,490,973.98

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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.