Home / 553,556.20-830,528.70-238,109.80

Finding the Fourth Proportional to 553,556.20, 830,528.70 and 238,109.80

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Solution

The fourth proportional to 553,556.20, 830,528.70 and 238,109.80 is: 357,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,556.20 : 830,528.70 = 238,109.80 : x
  2. Step 2: Convert to fraction form
    553,556.20/830,528.70 = 238,109.80/x
  3. Step 3: Cross multiply
    553,556.20x = 830,528.70 × 238,109.80
  4. Step 4: Simplify right side
    553,556.20x = 197,757,022,651.26
  5. Step 5: Solve for x
    x = 197,757,022,651.26/553,556.20
  6. Step 6: Final answer
    x = 357,248.32

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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.