Home / 860,110.80-1,289,777.40-386,552.40

Finding the Fourth Proportional to 860,110.80, 1,289,777.40 and 386,552.40

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Solution

The fourth proportional to 860,110.80, 1,289,777.40 and 386,552.40 is: 579,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,110.80 : 1,289,777.40 = 386,552.40 : x
  2. Step 2: Convert to fraction form
    860,110.80/1,289,777.40 = 386,552.40/x
  3. Step 3: Cross multiply
    860,110.80x = 1,289,777.40 × 386,552.40
  4. Step 4: Simplify right side
    860,110.80x = 498,566,549,435.76
  5. Step 5: Solve for x
    x = 498,566,549,435.76/860,110.80
  6. Step 6: Final answer
    x = 579,653.86

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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.