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Finding the Fourth Proportional to 514,219.80, 771,329.70 and 248,499.30

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Solution

The fourth proportional to 514,219.80, 771,329.70 and 248,499.30 is: 372,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,219.80 : 771,329.70 = 248,499.30 : x
  2. Step 2: Convert to fraction form
    514,219.80/771,329.70 = 248,499.30/x
  3. Step 3: Cross multiply
    514,219.80x = 771,329.70 × 248,499.30
  4. Step 4: Simplify right side
    514,219.80x = 191,674,890,519.21
  5. Step 5: Solve for x
    x = 191,674,890,519.21/514,219.80
  6. Step 6: Final answer
    x = 372,748.95

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Similar ratio
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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.