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Finding the Fourth Proportional to 379,561.50, 523,794.84 and 207,480.18

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Solution

The fourth proportional to 379,561.50, 523,794.84 and 207,480.18 is: 286,322.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,561.50 : 523,794.84 = 207,480.18 : x
  2. Step 2: Convert to fraction form
    379,561.50/523,794.84 = 207,480.18/x
  3. Step 3: Cross multiply
    379,561.50x = 523,794.84 × 207,480.18
  4. Step 4: Simplify right side
    379,561.50x = 108,677,047,686.27
  5. Step 5: Solve for x
    x = 108,677,047,686.27/379,561.50
  6. Step 6: Final answer
    x = 286,322.63

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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.