Home / 1,218,568.41-1,681,507.65-674,684.28

Finding the Fourth Proportional to 1,218,568.41, 1,681,507.65 and 674,684.28

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Solution

The fourth proportional to 1,218,568.41, 1,681,507.65 and 674,684.28 is: 930,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,568.41 : 1,681,507.65 = 674,684.28 : x
  2. Step 2: Convert to fraction form
    1,218,568.41/1,681,507.65 = 674,684.28/x
  3. Step 3: Cross multiply
    1,218,568.41x = 1,681,507.65 × 674,684.28
  4. Step 4: Simplify right side
    1,218,568.41x = 1,134,486,778,154.74
  5. Step 5: Solve for x
    x = 1,134,486,778,154.74/1,218,568.41
  6. Step 6: Final answer
    x = 930,999.66

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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.