Home / 1,218,187.02-1,681,077.69-674,311.11

Finding the Fourth Proportional to 1,218,187.02, 1,681,077.69 and 674,311.11

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Solution

The fourth proportional to 1,218,187.02, 1,681,077.69 and 674,311.11 is: 930,538.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,187.02 : 1,681,077.69 = 674,311.11 : x
  2. Step 2: Convert to fraction form
    1,218,187.02/1,681,077.69 = 674,311.11/x
  3. Step 3: Cross multiply
    1,218,187.02x = 1,681,077.69 × 674,311.11
  4. Step 4: Simplify right side
    1,218,187.02x = 1,133,569,363,140.14
  5. Step 5: Solve for x
    x = 1,133,569,363,140.14/1,218,187.02
  6. Step 6: Final answer
    x = 930,538.04

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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.