Home / 389,116.13-536,988.47-219,350.25

Finding the Fourth Proportional to 389,116.13, 536,988.47 and 219,350.25

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Solution

The fourth proportional to 389,116.13, 536,988.47 and 219,350.25 is: 302,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,116.13 : 536,988.47 = 219,350.25 : x
  2. Step 2: Convert to fraction form
    389,116.13/536,988.47 = 219,350.25/x
  3. Step 3: Cross multiply
    389,116.13x = 536,988.47 × 219,350.25
  4. Step 4: Simplify right side
    389,116.13x = 117,788,554,044.87
  5. Step 5: Solve for x
    x = 117,788,554,044.87/389,116.13
  6. Step 6: Final answer
    x = 302,707.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.