Home / 1,243,660.65-1,865,282.31-345,193.68

Finding the Fourth Proportional to 1,243,660.65, 1,865,282.31 and 345,193.68

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Solution

The fourth proportional to 1,243,660.65, 1,865,282.31 and 345,193.68 is: 517,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,660.65 : 1,865,282.31 = 345,193.68 : x
  2. Step 2: Convert to fraction form
    1,243,660.65/1,865,282.31 = 345,193.68/x
  3. Step 3: Cross multiply
    1,243,660.65x = 1,865,282.31 × 345,193.68
  4. Step 4: Simplify right side
    1,243,660.65x = 643,883,664,827.80
  5. Step 5: Solve for x
    x = 643,883,664,827.80/1,243,660.65
  6. Step 6: Final answer
    x = 517,732.60

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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.