Home / 719,263,865.27-992,580,484.84-389,239,004.27

Finding the Fourth Proportional to 719,263,865.27, 992,580,484.84 and 389,239,004.27

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Solution

The fourth proportional to 719,263,865.27, 992,580,484.84 and 389,239,004.27 is: 537,147,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,263,865.27 : 992,580,484.84 = 389,239,004.27 : x
  2. Step 2: Convert to fraction form
    719,263,865.27/992,580,484.84 = 389,239,004.27/x
  3. Step 3: Cross multiply
    719,263,865.27x = 992,580,484.84 × 389,239,004.27
  4. Step 4: Simplify right side
    719,263,865.27x = 386,351,039,576,955,456
  5. Step 5: Solve for x
    x = 386,351,039,576,955,456/719,263,865.27
  6. Step 6: Final answer
    x = 537,147,851.06

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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.