Home / 1,131,312.64-1,561,217.54-666,186.69

Finding the Fourth Proportional to 1,131,312.64, 1,561,217.54 and 666,186.69

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Solution

The fourth proportional to 1,131,312.64, 1,561,217.54 and 666,186.69 is: 919,341.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,312.64 : 1,561,217.54 = 666,186.69 : x
  2. Step 2: Convert to fraction form
    1,131,312.64/1,561,217.54 = 666,186.69/x
  3. Step 3: Cross multiply
    1,131,312.64x = 1,561,217.54 × 666,186.69
  4. Step 4: Simplify right side
    1,131,312.64x = 1,040,062,351,613.48
  5. Step 5: Solve for x
    x = 1,040,062,351,613.48/1,131,312.64
  6. Step 6: Final answer
    x = 919,341.23

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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.