Home / 390,546.03-585,813.57-153,890.76

Finding the Fourth Proportional to 390,546.03, 585,813.57 and 153,890.76

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Solution

The fourth proportional to 390,546.03, 585,813.57 and 153,890.76 is: 230,833.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,546.03 : 585,813.57 = 153,890.76 : x
  2. Step 2: Convert to fraction form
    390,546.03/585,813.57 = 153,890.76/x
  3. Step 3: Cross multiply
    390,546.03x = 585,813.57 × 153,890.76
  4. Step 4: Simplify right side
    390,546.03x = 90,151,295,505.61
  5. Step 5: Solve for x
    x = 90,151,295,505.61/390,546.03
  6. Step 6: Final answer
    x = 230,833.98

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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.