Home / 941,780.60-1,412,639.15-409,301.67

Finding the Fourth Proportional to 941,780.60, 1,412,639.15 and 409,301.67

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Solution

The fourth proportional to 941,780.60, 1,412,639.15 and 409,301.67 is: 613,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,780.60 : 1,412,639.15 = 409,301.67 : x
  2. Step 2: Convert to fraction form
    941,780.60/1,412,639.15 = 409,301.67/x
  3. Step 3: Cross multiply
    941,780.60x = 1,412,639.15 × 409,301.67
  4. Step 4: Simplify right side
    941,780.60x = 578,195,561,155.87
  5. Step 5: Solve for x
    x = 578,195,561,155.87/941,780.60
  6. Step 6: Final answer
    x = 613,938.71

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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.