Home / 389,231.20-583,393.20-178,890.40

Finding the Fourth Proportional to 389,231.20, 583,393.20 and 178,890.40

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Solution

The fourth proportional to 389,231.20, 583,393.20 and 178,890.40 is: 268,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,231.20 : 583,393.20 = 178,890.40 : x
  2. Step 2: Convert to fraction form
    389,231.20/583,393.20 = 178,890.40/x
  3. Step 3: Cross multiply
    389,231.20x = 583,393.20 × 178,890.40
  4. Step 4: Simplify right side
    389,231.20x = 104,363,442,905.28
  5. Step 5: Solve for x
    x = 104,363,442,905.28/389,231.20
  6. Step 6: Final answer
    x = 268,127.13

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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.