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Finding the Fourth Proportional to 468,082.16, 645,950.72 and 253,221.60

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Solution

The fourth proportional to 468,082.16, 645,950.72 and 253,221.60 is: 349,444.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,082.16 : 645,950.72 = 253,221.60 : x
  2. Step 2: Convert to fraction form
    468,082.16/645,950.72 = 253,221.60/x
  3. Step 3: Cross multiply
    468,082.16x = 645,950.72 × 253,221.60
  4. Step 4: Simplify right side
    468,082.16x = 163,568,674,839.55
  5. Step 5: Solve for x
    x = 163,568,674,839.55/468,082.16
  6. Step 6: Final answer
    x = 349,444.37

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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.