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Finding the Fourth Proportional to 351,262.20, 526,115.70 and 289,054.20

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Solution

The fourth proportional to 351,262.20, 526,115.70 and 289,054.20 is: 432,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,262.20 : 526,115.70 = 289,054.20 : x
  2. Step 2: Convert to fraction form
    351,262.20/526,115.70 = 289,054.20/x
  3. Step 3: Cross multiply
    351,262.20x = 526,115.70 × 289,054.20
  4. Step 4: Simplify right side
    351,262.20x = 152,075,952,770.94
  5. Step 5: Solve for x
    x = 152,075,952,770.94/351,262.20
  6. Step 6: Final answer
    x = 432,941.41

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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.