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Finding the Fourth Proportional to 531,964.80, 797,806.80 and 265,528.80

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Solution

The fourth proportional to 531,964.80, 797,806.80 and 265,528.80 is: 398,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,964.80 : 797,806.80 = 265,528.80 : x
  2. Step 2: Convert to fraction form
    531,964.80/797,806.80 = 265,528.80/x
  3. Step 3: Cross multiply
    531,964.80x = 797,806.80 × 265,528.80
  4. Step 4: Simplify right side
    531,964.80x = 211,840,682,235.84
  5. Step 5: Solve for x
    x = 211,840,682,235.84/531,964.80
  6. Step 6: Final answer
    x = 398,223.12

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Double scale
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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.