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Finding the Fourth Proportional to 696,683.61, 961,627.50 and 455,003.73

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Solution

The fourth proportional to 696,683.61, 961,627.50 and 455,003.73 is: 628,038.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,683.61 : 961,627.50 = 455,003.73 : x
  2. Step 2: Convert to fraction form
    696,683.61/961,627.50 = 455,003.73/x
  3. Step 3: Cross multiply
    696,683.61x = 961,627.50 × 455,003.73
  4. Step 4: Simplify right side
    696,683.61x = 437,544,099,370.58
  5. Step 5: Solve for x
    x = 437,544,099,370.58/696,683.61
  6. Step 6: Final answer
    x = 628,038.46

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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.