Home / 1,216,433.04-1,678,635.24-665,161.60

Finding the Fourth Proportional to 1,216,433.04, 1,678,635.24 and 665,161.60

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Solution

The fourth proportional to 1,216,433.04, 1,678,635.24 and 665,161.60 is: 917,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,433.04 : 1,678,635.24 = 665,161.60 : x
  2. Step 2: Convert to fraction form
    1,216,433.04/1,678,635.24 = 665,161.60/x
  3. Step 3: Cross multiply
    1,216,433.04x = 1,678,635.24 × 665,161.60
  4. Step 4: Simplify right side
    1,216,433.04x = 1,116,563,702,054.78
  5. Step 5: Solve for x
    x = 1,116,563,702,054.78/1,216,433.04
  6. Step 6: Final answer
    x = 917,899.85

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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.