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Finding the Fourth Proportional to 541,712.90, 747,315.66 and 350,787.80

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Solution

The fourth proportional to 541,712.90, 747,315.66 and 350,787.80 is: 483,926.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,712.90 : 747,315.66 = 350,787.80 : x
  2. Step 2: Convert to fraction form
    541,712.90/747,315.66 = 350,787.80/x
  3. Step 3: Cross multiply
    541,712.90x = 747,315.66 × 350,787.80
  4. Step 4: Simplify right side
    541,712.90x = 262,149,216,276.95
  5. Step 5: Solve for x
    x = 262,149,216,276.95/541,712.90
  6. Step 6: Final answer
    x = 483,926.48

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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.