Home / 1,173,200.86-1,619,017.20-636,656.86

Finding the Fourth Proportional to 1,173,200.86, 1,619,017.20 and 636,656.86

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Solution

The fourth proportional to 1,173,200.86, 1,619,017.20 and 636,656.86 is: 878,586.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,200.86 : 1,619,017.20 = 636,656.86 : x
  2. Step 2: Convert to fraction form
    1,173,200.86/1,619,017.20 = 636,656.86/x
  3. Step 3: Cross multiply
    1,173,200.86x = 1,619,017.20 × 636,656.86
  4. Step 4: Simplify right side
    1,173,200.86x = 1,030,758,406,837.99
  5. Step 5: Solve for x
    x = 1,030,758,406,837.99/1,173,200.86
  6. Step 6: Final answer
    x = 878,586.47

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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.