Home / 1,189,400.60-1,641,374.45-645,536.39

Finding the Fourth Proportional to 1,189,400.60, 1,641,374.45 and 645,536.39

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Solution

The fourth proportional to 1,189,400.60, 1,641,374.45 and 645,536.39 is: 890,841.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,400.60 : 1,641,374.45 = 645,536.39 : x
  2. Step 2: Convert to fraction form
    1,189,400.60/1,641,374.45 = 645,536.39/x
  3. Step 3: Cross multiply
    1,189,400.60x = 1,641,374.45 × 645,536.39
  4. Step 4: Simplify right side
    1,189,400.60x = 1,059,566,925,656.68
  5. Step 5: Solve for x
    x = 1,059,566,925,656.68/1,189,400.60
  6. Step 6: Final answer
    x = 890,841.09

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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.