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Finding the Fourth Proportional to 416,972.22, 575,423.64 and 225,985.56

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Solution

The fourth proportional to 416,972.22, 575,423.64 and 225,985.56 is: 311,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,972.22 : 575,423.64 = 225,985.56 : x
  2. Step 2: Convert to fraction form
    416,972.22/575,423.64 = 225,985.56/x
  3. Step 3: Cross multiply
    416,972.22x = 575,423.64 × 225,985.56
  4. Step 4: Simplify right side
    416,972.22x = 130,037,433,522.64
  5. Step 5: Solve for x
    x = 130,037,433,522.64/416,972.22
  6. Step 6: Final answer
    x = 311,861.14

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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.