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Finding the Fourth Proportional to 453,384.72, 679,785.48 and 216,722.16

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Solution

The fourth proportional to 453,384.72, 679,785.48 and 216,722.16 is: 324,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,384.72 : 679,785.48 = 216,722.16 : x
  2. Step 2: Convert to fraction form
    453,384.72/679,785.48 = 216,722.16/x
  3. Step 3: Cross multiply
    453,384.72x = 679,785.48 × 216,722.16
  4. Step 4: Simplify right side
    453,384.72x = 147,324,577,562.24
  5. Step 5: Solve for x
    x = 147,324,577,562.24/453,384.72
  6. Step 6: Final answer
    x = 324,943.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.