Home / 1,189,792.73-1,641,942.54-645,951.44

Finding the Fourth Proportional to 1,189,792.73, 1,641,942.54 and 645,951.44

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Solution

The fourth proportional to 1,189,792.73, 1,641,942.54 and 645,951.44 is: 891,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,792.73 : 1,641,942.54 = 645,951.44 : x
  2. Step 2: Convert to fraction form
    1,189,792.73/1,641,942.54 = 645,951.44/x
  3. Step 3: Cross multiply
    1,189,792.73x = 1,641,942.54 × 645,951.44
  4. Step 4: Simplify right side
    1,189,792.73x = 1,060,615,139,900.55
  5. Step 5: Solve for x
    x = 1,060,615,139,900.55/1,189,792.73
  6. Step 6: Final answer
    x = 891,428.50

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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.