Home / 515,041.85-772,905.54-211,684.79

Finding the Fourth Proportional to 515,041.85, 772,905.54 and 211,684.79

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Solution

The fourth proportional to 515,041.85, 772,905.54 and 211,684.79 is: 317,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,041.85 : 772,905.54 = 211,684.79 : x
  2. Step 2: Convert to fraction form
    515,041.85/772,905.54 = 211,684.79/x
  3. Step 3: Cross multiply
    515,041.85x = 772,905.54 × 211,684.79
  4. Step 4: Simplify right side
    515,041.85x = 163,612,346,924.74
  5. Step 5: Solve for x
    x = 163,612,346,924.74/515,041.85
  6. Step 6: Final answer
    x = 317,668.06

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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.