Home / 351,008.20-526,512.30-209,290.60

Finding the Fourth Proportional to 351,008.20, 526,512.30 and 209,290.60

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Solution

The fourth proportional to 351,008.20, 526,512.30 and 209,290.60 is: 313,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,008.20 : 526,512.30 = 209,290.60 : x
  2. Step 2: Convert to fraction form
    351,008.20/526,512.30 = 209,290.60/x
  3. Step 3: Cross multiply
    351,008.20x = 526,512.30 × 209,290.60
  4. Step 4: Simplify right side
    351,008.20x = 110,194,075,174.38
  5. Step 5: Solve for x
    x = 110,194,075,174.38/351,008.20
  6. Step 6: Final answer
    x = 313,935.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.