Home / 919,939.40-1,269,514.44-517,531.40

Finding the Fourth Proportional to 919,939.40, 1,269,514.44 and 517,531.40

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Solution

The fourth proportional to 919,939.40, 1,269,514.44 and 517,531.40 is: 714,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,939.40 : 1,269,514.44 = 517,531.40 : x
  2. Step 2: Convert to fraction form
    919,939.40/1,269,514.44 = 517,531.40/x
  3. Step 3: Cross multiply
    919,939.40x = 1,269,514.44 × 517,531.40
  4. Step 4: Simplify right side
    919,939.40x = 657,013,585,453.42
  5. Step 5: Solve for x
    x = 657,013,585,453.42/919,939.40
  6. Step 6: Final answer
    x = 714,192.25

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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.