Home / 1,218,330.56-1,681,216.08-674,428.52

Finding the Fourth Proportional to 1,218,330.56, 1,681,216.08 and 674,428.52

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Solution

The fourth proportional to 1,218,330.56, 1,681,216.08 and 674,428.52 is: 930,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,330.56 : 1,681,216.08 = 674,428.52 : x
  2. Step 2: Convert to fraction form
    1,218,330.56/1,681,216.08 = 674,428.52/x
  3. Step 3: Cross multiply
    1,218,330.56x = 1,681,216.08 × 674,428.52
  4. Step 4: Simplify right side
    1,218,330.56x = 1,133,860,072,634.60
  5. Step 5: Solve for x
    x = 1,133,860,072,634.60/1,218,330.56
  6. Step 6: Final answer
    x = 930,667.02

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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.