Home / 1,282,992.72-1,924,916.49-430,148.76

Finding the Fourth Proportional to 1,282,992.72, 1,924,916.49 and 430,148.76

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Solution

The fourth proportional to 1,282,992.72, 1,924,916.49 and 430,148.76 is: 645,366.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,992.72 : 1,924,916.49 = 430,148.76 : x
  2. Step 2: Convert to fraction form
    1,282,992.72/1,924,916.49 = 430,148.76/x
  3. Step 3: Cross multiply
    1,282,992.72x = 1,924,916.49 × 430,148.76
  4. Step 4: Simplify right side
    1,282,992.72x = 828,000,441,277.05
  5. Step 5: Solve for x
    x = 828,000,441,277.05/1,282,992.72
  6. Step 6: Final answer
    x = 645,366.44

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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.