Home / 862,666.07-1,190,567.77-518,613.38

Finding the Fourth Proportional to 862,666.07, 1,190,567.77 and 518,613.38

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Solution

The fourth proportional to 862,666.07, 1,190,567.77 and 518,613.38 is: 715,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,666.07 : 1,190,567.77 = 518,613.38 : x
  2. Step 2: Convert to fraction form
    862,666.07/1,190,567.77 = 518,613.38/x
  3. Step 3: Cross multiply
    862,666.07x = 1,190,567.77 × 518,613.38
  4. Step 4: Simplify right side
    862,666.07x = 617,444,379,230.96
  5. Step 5: Solve for x
    x = 617,444,379,230.96/862,666.07
  6. Step 6: Final answer
    x = 715,739.73

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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.