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Finding the Fourth Proportional to 493,606.40, 740,409.59 and 119,629.40

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Solution

The fourth proportional to 493,606.40, 740,409.59 and 119,629.40 is: 179,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,606.40 : 740,409.59 = 119,629.40 : x
  2. Step 2: Convert to fraction form
    493,606.40/740,409.59 = 119,629.40/x
  3. Step 3: Cross multiply
    493,606.40x = 740,409.59 × 119,629.40
  4. Step 4: Simplify right side
    493,606.40x = 88,574,755,005.95
  5. Step 5: Solve for x
    x = 88,574,755,005.95/493,606.40
  6. Step 6: Final answer
    x = 179,444.10

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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.