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Finding the Fourth Proportional to 554,458.64, 831,779.19 and 170,197.84

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Solution

The fourth proportional to 554,458.64, 831,779.19 and 170,197.84 is: 255,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,458.64 : 831,779.19 = 170,197.84 : x
  2. Step 2: Convert to fraction form
    554,458.64/831,779.19 = 170,197.84/x
  3. Step 3: Cross multiply
    554,458.64x = 831,779.19 × 170,197.84
  4. Step 4: Simplify right side
    554,458.64x = 141,567,019,415.50
  5. Step 5: Solve for x
    x = 141,567,019,415.50/554,458.64
  6. Step 6: Final answer
    x = 255,324.76

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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.