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Finding the Fourth Proportional to 571,930.86, 788,620.38 and 468,242.76

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Solution

The fourth proportional to 571,930.86, 788,620.38 and 468,242.76 is: 645,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,930.86 : 788,620.38 = 468,242.76 : x
  2. Step 2: Convert to fraction form
    571,930.86/788,620.38 = 468,242.76/x
  3. Step 3: Cross multiply
    571,930.86x = 788,620.38 × 468,242.76
  4. Step 4: Simplify right side
    571,930.86x = 369,265,783,323.45
  5. Step 5: Solve for x
    x = 369,265,783,323.45/571,930.86
  6. Step 6: Final answer
    x = 645,647.59

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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.