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Finding the Fourth Proportional to 671,706.86, 925,378.79 and 467,406.46

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Solution

The fourth proportional to 671,706.86, 925,378.79 and 467,406.46 is: 643,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,706.86 : 925,378.79 = 467,406.46 : x
  2. Step 2: Convert to fraction form
    671,706.86/925,378.79 = 467,406.46/x
  3. Step 3: Cross multiply
    671,706.86x = 925,378.79 × 467,406.46
  4. Step 4: Simplify right side
    671,706.86x = 432,528,024,392.98
  5. Step 5: Solve for x
    x = 432,528,024,392.98/671,706.86
  6. Step 6: Final answer
    x = 643,923.79

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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.