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Finding the Fourth Proportional to 415,590.40, 623,385.60 and 363,102.40

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Solution

The fourth proportional to 415,590.40, 623,385.60 and 363,102.40 is: 544,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,590.40 : 623,385.60 = 363,102.40 : x
  2. Step 2: Convert to fraction form
    415,590.40/623,385.60 = 363,102.40/x
  3. Step 3: Cross multiply
    415,590.40x = 623,385.60 × 363,102.40
  4. Step 4: Simplify right side
    415,590.40x = 226,352,807,485.44
  5. Step 5: Solve for x
    x = 226,352,807,485.44/415,590.40
  6. Step 6: Final answer
    x = 544,653.60

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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.