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Finding the Fourth Proportional to 493,316.93, 680,779.49 and 266,962.43

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Solution

The fourth proportional to 493,316.93, 680,779.49 and 266,962.43 is: 368,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,316.93 : 680,779.49 = 266,962.43 : x
  2. Step 2: Convert to fraction form
    493,316.93/680,779.49 = 266,962.43/x
  3. Step 3: Cross multiply
    493,316.93x = 680,779.49 × 266,962.43
  4. Step 4: Simplify right side
    493,316.93x = 181,742,542,205.85
  5. Step 5: Solve for x
    x = 181,742,542,205.85/493,316.93
  6. Step 6: Final answer
    x = 368,409.30

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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.