Home / 939,781.68-1,296,911.16-510,066.96

Finding the Fourth Proportional to 939,781.68, 1,296,911.16 and 510,066.96

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Solution

The fourth proportional to 939,781.68, 1,296,911.16 and 510,066.96 is: 703,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,781.68 : 1,296,911.16 = 510,066.96 : x
  2. Step 2: Convert to fraction form
    939,781.68/1,296,911.16 = 510,066.96/x
  3. Step 3: Cross multiply
    939,781.68x = 1,296,911.16 × 510,066.96
  4. Step 4: Simplify right side
    939,781.68x = 661,511,532,771.27
  5. Step 5: Solve for x
    x = 661,511,532,771.27/939,781.68
  6. Step 6: Final answer
    x = 703,899.16

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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.