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Finding the Fourth Proportional to 614,390.08, 921,710.56 and 348,269.44

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Solution

The fourth proportional to 614,390.08, 921,710.56 and 348,269.44 is: 522,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,390.08 : 921,710.56 = 348,269.44 : x
  2. Step 2: Convert to fraction form
    614,390.08/921,710.56 = 348,269.44/x
  3. Step 3: Cross multiply
    614,390.08x = 921,710.56 × 348,269.44
  4. Step 4: Simplify right side
    614,390.08x = 321,003,620,573.29
  5. Step 5: Solve for x
    x = 321,003,620,573.29/614,390.08
  6. Step 6: Final answer
    x = 522,475.27

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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.