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Finding the Fourth Proportional to 384,018.70, 576,028.05 and 117,777.10

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Solution

The fourth proportional to 384,018.70, 576,028.05 and 117,777.10 is: 176,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,018.70 : 576,028.05 = 117,777.10 : x
  2. Step 2: Convert to fraction form
    384,018.70/576,028.05 = 117,777.10/x
  3. Step 3: Cross multiply
    384,018.70x = 576,028.05 × 117,777.10
  4. Step 4: Simplify right side
    384,018.70x = 67,842,913,247.66
  5. Step 5: Solve for x
    x = 67,842,913,247.66/384,018.70
  6. Step 6: Final answer
    x = 176,665.65

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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.