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Finding the Fourth Proportional to 600,637.12, 828,518.86 and 396,688.44

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Solution

The fourth proportional to 600,637.12, 828,518.86 and 396,688.44 is: 547,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,637.12 : 828,518.86 = 396,688.44 : x
  2. Step 2: Convert to fraction form
    600,637.12/828,518.86 = 396,688.44/x
  3. Step 3: Cross multiply
    600,637.12x = 828,518.86 × 396,688.44
  4. Step 4: Simplify right side
    600,637.12x = 328,663,854,083.98
  5. Step 5: Solve for x
    x = 328,663,854,083.98/600,637.12
  6. Step 6: Final answer
    x = 547,192.05

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Why These Related Problems?

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