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Finding the Fourth Proportional to 2,859,978.89, 4,289,966.97 and 730,062.33

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Solution

The fourth proportional to 2,859,978.89, 4,289,966.97 and 730,062.33 is: 1,095,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859,978.89 : 4,289,966.97 = 730,062.33 : x
  2. Step 2: Convert to fraction form
    2,859,978.89/4,289,966.97 = 730,062.33/x
  3. Step 3: Cross multiply
    2,859,978.89x = 4,289,966.97 × 730,062.33
  4. Step 4: Simplify right side
    2,859,978.89x = 3,131,943,281,741.24
  5. Step 5: Solve for x
    x = 3,131,943,281,741.24/2,859,978.89
  6. Step 6: Final answer
    x = 1,095,093.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.