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Finding the Fourth Proportional to 400,043.94, 551,800.52 and 256,576.74

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Solution

The fourth proportional to 400,043.94, 551,800.52 and 256,576.74 is: 353,909.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,043.94 : 551,800.52 = 256,576.74 : x
  2. Step 2: Convert to fraction form
    400,043.94/551,800.52 = 256,576.74/x
  3. Step 3: Cross multiply
    400,043.94x = 551,800.52 × 256,576.74
  4. Step 4: Simplify right side
    400,043.94x = 141,579,177,269.02
  5. Step 5: Solve for x
    x = 141,579,177,269.02/400,043.94
  6. Step 6: Final answer
    x = 353,909.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.