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Finding the Fourth Proportional to 375,530.12, 518,057.84 and 332,553.40

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Solution

The fourth proportional to 375,530.12, 518,057.84 and 332,553.40 is: 458,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,530.12 : 518,057.84 = 332,553.40 : x
  2. Step 2: Convert to fraction form
    375,530.12/518,057.84 = 332,553.40/x
  3. Step 3: Cross multiply
    375,530.12x = 518,057.84 × 332,553.40
  4. Step 4: Simplify right side
    375,530.12x = 172,281,896,088.66
  5. Step 5: Solve for x
    x = 172,281,896,088.66/375,530.12
  6. Step 6: Final answer
    x = 458,769.85

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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.