Home / 381,376.29-526,281.14-209,290.37

Finding the Fourth Proportional to 381,376.29, 526,281.14 and 209,290.37

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Solution

The fourth proportional to 381,376.29, 526,281.14 and 209,290.37 is: 288,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,376.29 : 526,281.14 = 209,290.37 : x
  2. Step 2: Convert to fraction form
    381,376.29/526,281.14 = 209,290.37/x
  3. Step 3: Cross multiply
    381,376.29x = 526,281.14 × 209,290.37
  4. Step 4: Simplify right side
    381,376.29x = 110,145,574,514.62
  5. Step 5: Solve for x
    x = 110,145,574,514.62/381,376.29
  6. Step 6: Final answer
    x = 288,810.76

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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.