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Finding the Fourth Proportional to 543,989.54, 750,619.77 and 314,461.46

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Solution

The fourth proportional to 543,989.54, 750,619.77 and 314,461.46 is: 433,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,989.54 : 750,619.77 = 314,461.46 : x
  2. Step 2: Convert to fraction form
    543,989.54/750,619.77 = 314,461.46/x
  3. Step 3: Cross multiply
    543,989.54x = 750,619.77 × 314,461.46
  4. Step 4: Simplify right side
    543,989.54x = 236,040,988,779.06
  5. Step 5: Solve for x
    x = 236,040,988,779.06/543,989.54
  6. Step 6: Final answer
    x = 433,907.22

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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.