Home / 892,401,394.10-1,230,215,993.76-623,642,816.22

Finding the Fourth Proportional to 892,401,394.10, 1,230,215,993.76 and 623,642,816.22

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Solution

The fourth proportional to 892,401,394.10, 1,230,215,993.76 and 623,642,816.22 is: 859,720,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,401,394.10 : 1,230,215,993.76 = 623,642,816.22 : x
  2. Step 2: Convert to fraction form
    892,401,394.10/1,230,215,993.76 = 623,642,816.22/x
  3. Step 3: Cross multiply
    892,401,394.10x = 1,230,215,993.76 × 623,642,816.22
  4. Step 4: Simplify right side
    892,401,394.10x = 767,215,366,907,372,416
  5. Step 5: Solve for x
    x = 767,215,366,907,372,416/892,401,394.10
  6. Step 6: Final answer
    x = 859,720,045.24

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Double scale
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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.