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Finding the Fourth Proportional to 352,846.08, 487,004.58 and 216,996.90

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Solution

The fourth proportional to 352,846.08, 487,004.58 and 216,996.90 is: 299,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,846.08 : 487,004.58 = 216,996.90 : x
  2. Step 2: Convert to fraction form
    352,846.08/487,004.58 = 216,996.90/x
  3. Step 3: Cross multiply
    352,846.08x = 487,004.58 × 216,996.90
  4. Step 4: Simplify right side
    352,846.08x = 105,678,484,145.80
  5. Step 5: Solve for x
    x = 105,678,484,145.80/352,846.08
  6. Step 6: Final answer
    x = 299,503.07

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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.