Home / 389,171.08-537,048.93-219,405.34

Finding the Fourth Proportional to 389,171.08, 537,048.93 and 219,405.34

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Solution

The fourth proportional to 389,171.08, 537,048.93 and 219,405.34 is: 302,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,171.08 : 537,048.93 = 219,405.34 : x
  2. Step 2: Convert to fraction form
    389,171.08/537,048.93 = 219,405.34/x
  3. Step 3: Cross multiply
    389,171.08x = 537,048.93 × 219,405.34
  4. Step 4: Simplify right side
    389,171.08x = 117,831,403,083.29
  5. Step 5: Solve for x
    x = 117,831,403,083.29/389,171.08
  6. Step 6: Final answer
    x = 302,775.33

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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.