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Finding the Fourth Proportional to 704,865.60, 1,062,580.32 and 657,940.32

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Solution

The fourth proportional to 704,865.60, 1,062,580.32 and 657,940.32 is: 991,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,865.60 : 1,062,580.32 = 657,940.32 : x
  2. Step 2: Convert to fraction form
    704,865.60/1,062,580.32 = 657,940.32/x
  3. Step 3: Cross multiply
    704,865.60x = 1,062,580.32 × 657,940.32
  4. Step 4: Simplify right side
    704,865.60x = 699,114,435,766.50
  5. Step 5: Solve for x
    x = 699,114,435,766.50/704,865.60
  6. Step 6: Final answer
    x = 991,840.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.