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Finding the Fourth Proportional to 514,216.80, 771,325.20 and 248,496.30

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Solution

The fourth proportional to 514,216.80, 771,325.20 and 248,496.30 is: 372,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,216.80 : 771,325.20 = 248,496.30 : x
  2. Step 2: Convert to fraction form
    514,216.80/771,325.20 = 248,496.30/x
  3. Step 3: Cross multiply
    514,216.80x = 771,325.20 × 248,496.30
  4. Step 4: Simplify right side
    514,216.80x = 191,671,458,296.76
  5. Step 5: Solve for x
    x = 191,671,458,296.76/514,216.80
  6. Step 6: Final answer
    x = 372,744.45

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Double scale
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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.