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Finding the Fourth Proportional to 574,056.69, 860,656.10 and 396,055.77

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Solution

The fourth proportional to 574,056.69, 860,656.10 and 396,055.77 is: 593,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,056.69 : 860,656.10 = 396,055.77 : x
  2. Step 2: Convert to fraction form
    574,056.69/860,656.10 = 396,055.77/x
  3. Step 3: Cross multiply
    574,056.69x = 860,656.10 × 396,055.77
  4. Step 4: Simplify right side
    574,056.69x = 340,867,812,410.42
  5. Step 5: Solve for x
    x = 340,867,812,410.42/574,056.69
  6. Step 6: Final answer
    x = 593,787.72

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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.