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Finding the Fourth Proportional to 316,347.50, 436,563.60 and 182,211.50

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Solution

The fourth proportional to 316,347.50, 436,563.60 and 182,211.50 is: 251,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,347.50 : 436,563.60 = 182,211.50 : x
  2. Step 2: Convert to fraction form
    316,347.50/436,563.60 = 182,211.50/x
  3. Step 3: Cross multiply
    316,347.50x = 436,563.60 × 182,211.50
  4. Step 4: Simplify right side
    316,347.50x = 79,546,908,401.40
  5. Step 5: Solve for x
    x = 79,546,908,401.40/316,347.50
  6. Step 6: Final answer
    x = 251,454.20

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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.