Home / 1,282,939.80-1,924,837.20-430,095.75

Finding the Fourth Proportional to 1,282,939.80, 1,924,837.20 and 430,095.75

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Solution

The fourth proportional to 1,282,939.80, 1,924,837.20 and 430,095.75 is: 645,286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,939.80 : 1,924,837.20 = 430,095.75 : x
  2. Step 2: Convert to fraction form
    1,282,939.80/1,924,837.20 = 430,095.75/x
  3. Step 3: Cross multiply
    1,282,939.80x = 1,924,837.20 × 430,095.75
  4. Step 4: Simplify right side
    1,282,939.80x = 827,864,299,161.90
  5. Step 5: Solve for x
    x = 827,864,299,161.90/1,282,939.80
  6. Step 6: Final answer
    x = 645,286.94

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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.