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Finding the Fourth Proportional to 541,532.64, 812,823.84 and 261,246.72

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Solution

The fourth proportional to 541,532.64, 812,823.84 and 261,246.72 is: 392,123.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,532.64 : 812,823.84 = 261,246.72 : x
  2. Step 2: Convert to fraction form
    541,532.64/812,823.84 = 261,246.72/x
  3. Step 3: Cross multiply
    541,532.64x = 812,823.84 × 261,246.72
  4. Step 4: Simplify right side
    541,532.64x = 212,347,562,137.81
  5. Step 5: Solve for x
    x = 212,347,562,137.81/541,532.64
  6. Step 6: Final answer
    x = 392,123.29

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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.