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Finding the Fourth Proportional to 370,788.60, 557,349.30 and 363,790.20

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Solution

The fourth proportional to 370,788.60, 557,349.30 and 363,790.20 is: 546,829.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,788.60 : 557,349.30 = 363,790.20 : x
  2. Step 2: Convert to fraction form
    370,788.60/557,349.30 = 363,790.20/x
  3. Step 3: Cross multiply
    370,788.60x = 557,349.30 × 363,790.20
  4. Step 4: Simplify right side
    370,788.60x = 202,758,213,316.86
  5. Step 5: Solve for x
    x = 202,758,213,316.86/370,788.60
  6. Step 6: Final answer
    x = 546,829.68

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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.