Home / 656,383.34-905,977.55-427,510.96

Finding the Fourth Proportional to 656,383.34, 905,977.55 and 427,510.96

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Solution

The fourth proportional to 656,383.34, 905,977.55 and 427,510.96 is: 590,074.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,383.34 : 905,977.55 = 427,510.96 : x
  2. Step 2: Convert to fraction form
    656,383.34/905,977.55 = 427,510.96/x
  3. Step 3: Cross multiply
    656,383.34x = 905,977.55 × 427,510.96
  4. Step 4: Simplify right side
    656,383.34x = 387,315,330,942.78
  5. Step 5: Solve for x
    x = 387,315,330,942.78/656,383.34
  6. Step 6: Final answer
    x = 590,074.89

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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.