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Finding the Fourth Proportional to 755,040.90, 1,041,978.36 and 410,899.02

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Solution

The fourth proportional to 755,040.90, 1,041,978.36 and 410,899.02 is: 567,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,040.90 : 1,041,978.36 = 410,899.02 : x
  2. Step 2: Convert to fraction form
    755,040.90/1,041,978.36 = 410,899.02/x
  3. Step 3: Cross multiply
    755,040.90x = 1,041,978.36 × 410,899.02
  4. Step 4: Simplify right side
    755,040.90x = 428,147,886,985.21
  5. Step 5: Solve for x
    x = 428,147,886,985.21/755,040.90
  6. Step 6: Final answer
    x = 567,052.58

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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.