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Finding the Fourth Proportional to 555,111.11, 832,998.86 and 509,938.63

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Solution

The fourth proportional to 555,111.11, 832,998.86 and 509,938.63 is: 765,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,111.11 : 832,998.86 = 509,938.63 : x
  2. Step 2: Convert to fraction form
    555,111.11/832,998.86 = 509,938.63/x
  3. Step 3: Cross multiply
    555,111.11x = 832,998.86 × 509,938.63
  4. Step 4: Simplify right side
    555,111.11x = 424,778,290,745.27
  5. Step 5: Solve for x
    x = 424,778,290,745.27/555,111.11
  6. Step 6: Final answer
    x = 765,213.10

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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.