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Finding the Fourth Proportional to 316,210.89, 436,382.29 and 180,222.87

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Solution

The fourth proportional to 316,210.89, 436,382.29 and 180,222.87 is: 248,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,210.89 : 436,382.29 = 180,222.87 : x
  2. Step 2: Convert to fraction form
    316,210.89/436,382.29 = 180,222.87/x
  3. Step 3: Cross multiply
    316,210.89x = 436,382.29 × 180,222.87
  4. Step 4: Simplify right side
    316,210.89x = 78,646,069,568.93
  5. Step 5: Solve for x
    x = 78,646,069,568.93/316,210.89
  6. Step 6: Final answer
    x = 248,713.98

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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.