Home / 418,019.89-577,043.60-282,237.57

Finding the Fourth Proportional to 418,019.89, 577,043.60 and 282,237.57

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Solution

The fourth proportional to 418,019.89, 577,043.60 and 282,237.57 is: 389,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,019.89 : 577,043.60 = 282,237.57 : x
  2. Step 2: Convert to fraction form
    418,019.89/577,043.60 = 282,237.57/x
  3. Step 3: Cross multiply
    418,019.89x = 577,043.60 × 282,237.57
  4. Step 4: Simplify right side
    418,019.89x = 162,863,383,448.05
  5. Step 5: Solve for x
    x = 162,863,383,448.05/418,019.89
  6. Step 6: Final answer
    x = 389,606.78

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1.5x scale

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.