Home / 699,416,601.81-965,279,556.26-398,075,184.10

Finding the Fourth Proportional to 699,416,601.81, 965,279,556.26 and 398,075,184.10

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Solution

The fourth proportional to 699,416,601.81, 965,279,556.26 and 398,075,184.10 is: 549,391,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,416,601.81 : 965,279,556.26 = 398,075,184.10 : x
  2. Step 2: Convert to fraction form
    699,416,601.81/965,279,556.26 = 398,075,184.10/x
  3. Step 3: Cross multiply
    699,416,601.81x = 965,279,556.26 × 398,075,184.10
  4. Step 4: Simplify right side
    699,416,601.81x = 384,253,837,061,440,256
  5. Step 5: Solve for x
    x = 384,253,837,061,440,256/699,416,601.81
  6. Step 6: Final answer
    x = 549,391,930.45

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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.