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Finding the Fourth Proportional to 541,764.96, 747,571.55 and 312,397.61

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Solution

The fourth proportional to 541,764.96, 747,571.55 and 312,397.61 is: 431,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,764.96 : 747,571.55 = 312,397.61 : x
  2. Step 2: Convert to fraction form
    541,764.96/747,571.55 = 312,397.61/x
  3. Step 3: Cross multiply
    541,764.96x = 747,571.55 × 312,397.61
  4. Step 4: Simplify right side
    541,764.96x = 233,539,566,186.48
  5. Step 5: Solve for x
    x = 233,539,566,186.48/541,764.96
  6. Step 6: Final answer
    x = 431,071.74

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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.