Home / 1,282,940.80-1,924,838.70-430,096.75

Finding the Fourth Proportional to 1,282,940.80, 1,924,838.70 and 430,096.75

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Solution

The fourth proportional to 1,282,940.80, 1,924,838.70 and 430,096.75 is: 645,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,940.80 : 1,924,838.70 = 430,096.75 : x
  2. Step 2: Convert to fraction form
    1,282,940.80/1,924,838.70 = 430,096.75/x
  3. Step 3: Cross multiply
    1,282,940.80x = 1,924,838.70 × 430,096.75
  4. Step 4: Simplify right side
    1,282,940.80x = 827,866,869,144.23
  5. Step 5: Solve for x
    x = 827,866,869,144.23/1,282,940.80
  6. Step 6: Final answer
    x = 645,288.44

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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.