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Finding the Fourth Proportional to 422,341.70, 633,595.16 and 185,683.59

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Solution

The fourth proportional to 422,341.70, 633,595.16 and 185,683.59 is: 278,561.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,341.70 : 633,595.16 = 185,683.59 : x
  2. Step 2: Convert to fraction form
    422,341.70/633,595.16 = 185,683.59/x
  3. Step 3: Cross multiply
    422,341.70x = 633,595.16 × 185,683.59
  4. Step 4: Simplify right side
    422,341.70x = 117,648,224,379.63
  5. Step 5: Solve for x
    x = 117,648,224,379.63/422,341.70
  6. Step 6: Final answer
    x = 278,561.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.