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Finding the Fourth Proportional to 888,051.72, 1,225,493.04 and 485,643.72

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Solution

The fourth proportional to 888,051.72, 1,225,493.04 and 485,643.72 is: 670,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,051.72 : 1,225,493.04 = 485,643.72 : x
  2. Step 2: Convert to fraction form
    888,051.72/1,225,493.04 = 485,643.72/x
  3. Step 3: Cross multiply
    888,051.72x = 1,225,493.04 × 485,643.72
  4. Step 4: Simplify right side
    888,051.72x = 595,152,998,779.71
  5. Step 5: Solve for x
    x = 595,152,998,779.71/888,051.72
  6. Step 6: Final answer
    x = 670,178.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.