Home / 656,429.01-905,524.88-452,128.56

Finding the Fourth Proportional to 656,429.01, 905,524.88 and 452,128.56

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Solution

The fourth proportional to 656,429.01, 905,524.88 and 452,128.56 is: 623,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,429.01 : 905,524.88 = 452,128.56 : x
  2. Step 2: Convert to fraction form
    656,429.01/905,524.88 = 452,128.56/x
  3. Step 3: Cross multiply
    656,429.01x = 905,524.88 × 452,128.56
  4. Step 4: Simplify right side
    656,429.01x = 409,413,657,777.93
  5. Step 5: Solve for x
    x = 409,413,657,777.93/656,429.01
  6. Step 6: Final answer
    x = 623,698.30

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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.