Home / 278,783.04-417,941.10-194,295.36

Finding the Fourth Proportional to 278,783.04, 417,941.10 and 194,295.36

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Solution

The fourth proportional to 278,783.04, 417,941.10 and 194,295.36 is: 291,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,783.04 : 417,941.10 = 194,295.36 : x
  2. Step 2: Convert to fraction form
    278,783.04/417,941.10 = 194,295.36/x
  3. Step 3: Cross multiply
    278,783.04x = 417,941.10 × 194,295.36
  4. Step 4: Simplify right side
    278,783.04x = 81,204,016,483.30
  5. Step 5: Solve for x
    x = 81,204,016,483.30/278,783.04
  6. Step 6: Final answer
    x = 291,280.33

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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.