Home / 1,219,686.65-1,683,165.90-675,857.64

Finding the Fourth Proportional to 1,219,686.65, 1,683,165.90 and 675,857.64

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Solution

The fourth proportional to 1,219,686.65, 1,683,165.90 and 675,857.64 is: 932,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,686.65 : 1,683,165.90 = 675,857.64 : x
  2. Step 2: Convert to fraction form
    1,219,686.65/1,683,165.90 = 675,857.64/x
  3. Step 3: Cross multiply
    1,219,686.65x = 1,683,165.90 × 675,857.64
  4. Step 4: Simplify right side
    1,219,686.65x = 1,137,580,535,436.94
  5. Step 5: Solve for x
    x = 1,137,580,535,436.94/1,219,686.65
  6. Step 6: Final answer
    x = 932,682.62

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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.