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Finding the Fourth Proportional to 555,109.86, 832,996.98 and 509,937.38

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Solution

The fourth proportional to 555,109.86, 832,996.98 and 509,937.38 is: 765,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,109.86 : 832,996.98 = 509,937.38 : x
  2. Step 2: Convert to fraction form
    555,109.86/832,996.98 = 509,937.38/x
  3. Step 3: Cross multiply
    555,109.86x = 832,996.98 × 509,937.38
  4. Step 4: Simplify right side
    555,109.86x = 424,776,293,364.13
  5. Step 5: Solve for x
    x = 424,776,293,364.13/555,109.86
  6. Step 6: Final answer
    x = 765,211.22

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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.