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Finding the Fourth Proportional to 555,232,897.33, 827,885,417.24 and 539,978,215.63

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Solution

The fourth proportional to 555,232,897.33, 827,885,417.24 and 539,978,215.63 is: 805,139,775.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,232,897.33 : 827,885,417.24 = 539,978,215.63 : x
  2. Step 2: Convert to fraction form
    555,232,897.33/827,885,417.24 = 539,978,215.63/x
  3. Step 3: Cross multiply
    555,232,897.33x = 827,885,417.24 × 539,978,215.63
  4. Step 4: Simplify right side
    555,232,897.33x = 447,040,090,344,608,576
  5. Step 5: Solve for x
    x = 447,040,090,344,608,576/555,232,897.33
  6. Step 6: Final answer
    x = 805,139,775.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.