Home / 1,243,801.63-1,865,835.78-345,247.17

Finding the Fourth Proportional to 1,243,801.63, 1,865,835.78 and 345,247.17

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Solution

The fourth proportional to 1,243,801.63, 1,865,835.78 and 345,247.17 is: 517,907.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,801.63 : 1,865,835.78 = 345,247.17 : x
  2. Step 2: Convert to fraction form
    1,243,801.63/1,865,835.78 = 345,247.17/x
  3. Step 3: Cross multiply
    1,243,801.63x = 1,865,835.78 × 345,247.17
  4. Step 4: Simplify right side
    1,243,801.63x = 644,174,522,729.74
  5. Step 5: Solve for x
    x = 644,174,522,729.74/1,243,801.63
  6. Step 6: Final answer
    x = 517,907.77

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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.