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Finding the Fourth Proportional to 618,109.86, 853,123.41 and 363,606.24

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Solution

The fourth proportional to 618,109.86, 853,123.41 and 363,606.24 is: 501,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,109.86 : 853,123.41 = 363,606.24 : x
  2. Step 2: Convert to fraction form
    618,109.86/853,123.41 = 363,606.24/x
  3. Step 3: Cross multiply
    618,109.86x = 853,123.41 × 363,606.24
  4. Step 4: Simplify right side
    618,109.86x = 310,200,995,366.08
  5. Step 5: Solve for x
    x = 310,200,995,366.08/618,109.86
  6. Step 6: Final answer
    x = 501,854.15

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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.