Home / 1,292,858,256.29-1,939,559,746.26-419,391,422.33

Finding the Fourth Proportional to 1,292,858,256.29, 1,939,559,746.26 and 419,391,422.33

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Solution

The fourth proportional to 1,292,858,256.29, 1,939,559,746.26 and 419,391,422.33 is: 629,175,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,858,256.29 : 1,939,559,746.26 = 419,391,422.33 : x
  2. Step 2: Convert to fraction form
    1,292,858,256.29/1,939,559,746.26 = 419,391,422.33/x
  3. Step 3: Cross multiply
    1,292,858,256.29x = 1,939,559,746.26 × 419,391,422.33
  4. Step 4: Simplify right side
    1,292,858,256.29x = 813,434,720,677,995,264
  5. Step 5: Solve for x
    x = 813,434,720,677,995,264/1,292,858,256.29
  6. Step 6: Final answer
    x = 629,175,485.19

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Double scale
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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.