Home / 930,922.78-1,284,674.64-528,514.78

Finding the Fourth Proportional to 930,922.78, 1,284,674.64 and 528,514.78

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Solution

The fourth proportional to 930,922.78, 1,284,674.64 and 528,514.78 is: 729,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,922.78 : 1,284,674.64 = 528,514.78 : x
  2. Step 2: Convert to fraction form
    930,922.78/1,284,674.64 = 528,514.78/x
  3. Step 3: Cross multiply
    930,922.78x = 1,284,674.64 × 528,514.78
  4. Step 4: Simplify right side
    930,922.78x = 678,969,534,731.18
  5. Step 5: Solve for x
    x = 678,969,534,731.18/930,922.78
  6. Step 6: Final answer
    x = 729,351.08

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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.