Home / 389,314.10-537,290.62-236,317.20

Finding the Fourth Proportional to 389,314.10, 537,290.62 and 236,317.20

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Solution

The fourth proportional to 389,314.10, 537,290.62 and 236,317.20 is: 326,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,314.10 : 537,290.62 = 236,317.20 : x
  2. Step 2: Convert to fraction form
    389,314.10/537,290.62 = 236,317.20/x
  3. Step 3: Cross multiply
    389,314.10x = 537,290.62 × 236,317.20
  4. Step 4: Simplify right side
    389,314.10x = 126,971,012,299.03
  5. Step 5: Solve for x
    x = 126,971,012,299.03/389,314.10
  6. Step 6: Final answer
    x = 326,140.29

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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.