Home / 353,317.03-529,654.85-128,518.57

Finding the Fourth Proportional to 353,317.03, 529,654.85 and 128,518.57

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Solution

The fourth proportional to 353,317.03, 529,654.85 and 128,518.57 is: 192,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,317.03 : 529,654.85 = 128,518.57 : x
  2. Step 2: Convert to fraction form
    353,317.03/529,654.85 = 128,518.57/x
  3. Step 3: Cross multiply
    353,317.03x = 529,654.85 × 128,518.57
  4. Step 4: Simplify right side
    353,317.03x = 68,070,484,416.98
  5. Step 5: Solve for x
    x = 68,070,484,416.98/353,317.03
  6. Step 6: Final answer
    x = 192,661.21

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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.