Home / 656,135.42-899,561.56-644,178.02

Finding the Fourth Proportional to 656,135.42, 899,561.56 and 644,178.02

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Solution

The fourth proportional to 656,135.42, 899,561.56 and 644,178.02 is: 883,167.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,135.42 : 899,561.56 = 644,178.02 : x
  2. Step 2: Convert to fraction form
    656,135.42/899,561.56 = 644,178.02/x
  3. Step 3: Cross multiply
    656,135.42x = 899,561.56 × 644,178.02
  4. Step 4: Simplify right side
    656,135.42x = 579,477,784,588.91
  5. Step 5: Solve for x
    x = 579,477,784,588.91/656,135.42
  6. Step 6: Final answer
    x = 883,167.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.