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Finding the Fourth Proportional to 415,945.86, 623,870.60 and 116,450.39

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Solution

The fourth proportional to 415,945.86, 623,870.60 and 116,450.39 is: 174,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,945.86 : 623,870.60 = 116,450.39 : x
  2. Step 2: Convert to fraction form
    415,945.86/623,870.60 = 116,450.39/x
  3. Step 3: Cross multiply
    415,945.86x = 623,870.60 × 116,450.39
  4. Step 4: Simplify right side
    415,945.86x = 72,649,970,977.93
  5. Step 5: Solve for x
    x = 72,649,970,977.93/415,945.86
  6. Step 6: Final answer
    x = 174,662.08

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1.5x scale

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.