Home / 389,623.60-584,435.40-200,666.80

Finding the Fourth Proportional to 389,623.60, 584,435.40 and 200,666.80

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Solution

The fourth proportional to 389,623.60, 584,435.40 and 200,666.80 is: 301,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,623.60 : 584,435.40 = 200,666.80 : x
  2. Step 2: Convert to fraction form
    389,623.60/584,435.40 = 200,666.80/x
  3. Step 3: Cross multiply
    389,623.60x = 584,435.40 × 200,666.80
  4. Step 4: Simplify right side
    389,623.60x = 117,276,781,524.72
  5. Step 5: Solve for x
    x = 117,276,781,524.72/389,623.60
  6. Step 6: Final answer
    x = 301,000.20

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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.