Home / 389,396.08-537,609.86-298,577.58

Finding the Fourth Proportional to 389,396.08, 537,609.86 and 298,577.58

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Solution

The fourth proportional to 389,396.08, 537,609.86 and 298,577.58 is: 412,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,396.08 : 537,609.86 = 298,577.58 : x
  2. Step 2: Convert to fraction form
    389,396.08/537,609.86 = 298,577.58/x
  3. Step 3: Cross multiply
    389,396.08x = 537,609.86 × 298,577.58
  4. Step 4: Simplify right side
    389,396.08x = 160,518,250,982.94
  5. Step 5: Solve for x
    x = 160,518,250,982.94/389,396.08
  6. Step 6: Final answer
    x = 412,223.59

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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.