Home / 719,233,287.85-991,995,020.02-618,930,784.72

Finding the Fourth Proportional to 719,233,287.85, 991,995,020.02 and 618,930,784.72

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Solution

The fourth proportional to 719,233,287.85, 991,995,020.02 and 618,930,784.72 is: 853,653,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,233,287.85 : 991,995,020.02 = 618,930,784.72 : x
  2. Step 2: Convert to fraction form
    719,233,287.85/991,995,020.02 = 618,930,784.72/x
  3. Step 3: Cross multiply
    719,233,287.85x = 991,995,020.02 × 618,930,784.72
  4. Step 4: Simplify right side
    719,233,287.85x = 613,976,256,179,310,720
  5. Step 5: Solve for x
    x = 613,976,256,179,310,720/719,233,287.85
  6. Step 6: Final answer
    x = 853,653,837.43

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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.