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Finding the Fourth Proportional to 415,739.68, 623,329.30 and 335,875.90

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Solution

The fourth proportional to 415,739.68, 623,329.30 and 335,875.90 is: 503,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,739.68 : 623,329.30 = 335,875.90 : x
  2. Step 2: Convert to fraction form
    415,739.68/623,329.30 = 335,875.90/x
  3. Step 3: Cross multiply
    415,739.68x = 623,329.30 × 335,875.90
  4. Step 4: Simplify right side
    415,739.68x = 209,361,289,633.87
  5. Step 5: Solve for x
    x = 209,361,289,633.87/415,739.68
  6. Step 6: Final answer
    x = 503,587.46

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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.