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Finding the Fourth Proportional to 541,976.54, 812,671.59 and 430,374.74

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Solution

The fourth proportional to 541,976.54, 812,671.59 and 430,374.74 is: 645,329.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,976.54 : 812,671.59 = 430,374.74 : x
  2. Step 2: Convert to fraction form
    541,976.54/812,671.59 = 430,374.74/x
  3. Step 3: Cross multiply
    541,976.54x = 812,671.59 × 430,374.74
  4. Step 4: Simplify right side
    541,976.54x = 349,753,324,251.64
  5. Step 5: Solve for x
    x = 349,753,324,251.64/541,976.54
  6. Step 6: Final answer
    x = 645,329.27

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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.