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Finding the Fourth Proportional to 737,930.92, 1,018,421.22 and 451,641.64

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Solution

The fourth proportional to 737,930.92, 1,018,421.22 and 451,641.64 is: 623,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,930.92 : 1,018,421.22 = 451,641.64 : x
  2. Step 2: Convert to fraction form
    737,930.92/1,018,421.22 = 451,641.64/x
  3. Step 3: Cross multiply
    737,930.92x = 1,018,421.22 × 451,641.64
  4. Step 4: Simplify right side
    737,930.92x = 459,961,430,011.60
  5. Step 5: Solve for x
    x = 459,961,430,011.60/737,930.92
  6. Step 6: Final answer
    x = 623,312.31

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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.