Home / 389,129.67-536,999.83-217,043.35

Finding the Fourth Proportional to 389,129.67, 536,999.83 and 217,043.35

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Solution

The fourth proportional to 389,129.67, 536,999.83 and 217,043.35 is: 299,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,129.67 : 536,999.83 = 217,043.35 : x
  2. Step 2: Convert to fraction form
    389,129.67/536,999.83 = 217,043.35/x
  3. Step 3: Cross multiply
    389,129.67x = 536,999.83 × 217,043.35
  4. Step 4: Simplify right side
    389,129.67x = 116,552,240,167.52
  5. Step 5: Solve for x
    x = 116,552,240,167.52/389,129.67
  6. Step 6: Final answer
    x = 299,520.31

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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.