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Finding the Fourth Proportional to 316,229.01, 436,419.71 and 180,266.19

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Solution

The fourth proportional to 316,229.01, 436,419.71 and 180,266.19 is: 248,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,229.01 : 436,419.71 = 180,266.19 : x
  2. Step 2: Convert to fraction form
    316,229.01/436,419.71 = 180,266.19/x
  3. Step 3: Cross multiply
    316,229.01x = 436,419.71 × 180,266.19
  4. Step 4: Simplify right side
    316,229.01x = 78,671,718,362.60
  5. Step 5: Solve for x
    x = 78,671,718,362.60/316,229.01
  6. Step 6: Final answer
    x = 248,780.84

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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.