Home / 920,404,103.96-1,270,161,542.37-518,522,674.52

Finding the Fourth Proportional to 920,404,103.96, 1,270,161,542.37 and 518,522,674.52

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Solution

The fourth proportional to 920,404,103.96, 1,270,161,542.37 and 518,522,674.52 is: 715,563,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,404,103.96 : 1,270,161,542.37 = 518,522,674.52 : x
  2. Step 2: Convert to fraction form
    920,404,103.96/1,270,161,542.37 = 518,522,674.52/x
  3. Step 3: Cross multiply
    920,404,103.96x = 1,270,161,542.37 × 518,522,674.52
  4. Step 4: Simplify right side
    920,404,103.96x = 658,607,560,017,708,416
  5. Step 5: Solve for x
    x = 658,607,560,017,708,416/920,404,103.96
  6. Step 6: Final answer
    x = 715,563,476.07

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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.