Home / 828,565.48-1,143,577.31-518,611.79

Finding the Fourth Proportional to 828,565.48, 1,143,577.31 and 518,611.79

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Solution

The fourth proportional to 828,565.48, 1,143,577.31 and 518,611.79 is: 715,782.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,565.48 : 1,143,577.31 = 518,611.79 : x
  2. Step 2: Convert to fraction form
    828,565.48/1,143,577.31 = 518,611.79/x
  3. Step 3: Cross multiply
    828,565.48x = 1,143,577.31 × 518,611.79
  4. Step 4: Simplify right side
    828,565.48x = 593,072,678,925.56
  5. Step 5: Solve for x
    x = 593,072,678,925.56/828,565.48
  6. Step 6: Final answer
    x = 715,782.51

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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.