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Finding the Fourth Proportional to 633,381.84, 874,050.21 and 361,444.86

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Solution

The fourth proportional to 633,381.84, 874,050.21 and 361,444.86 is: 498,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,381.84 : 874,050.21 = 361,444.86 : x
  2. Step 2: Convert to fraction form
    633,381.84/874,050.21 = 361,444.86/x
  3. Step 3: Cross multiply
    633,381.84x = 874,050.21 × 361,444.86
  4. Step 4: Simplify right side
    633,381.84x = 315,920,955,786.42
  5. Step 5: Solve for x
    x = 315,920,955,786.42/633,381.84
  6. Step 6: Final answer
    x = 498,784.36

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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.