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Finding the Fourth Proportional to 418,011.99, 576,892.13 and 236,756.16

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Solution

The fourth proportional to 418,011.99, 576,892.13 and 236,756.16 is: 326,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,011.99 : 576,892.13 = 236,756.16 : x
  2. Step 2: Convert to fraction form
    418,011.99/576,892.13 = 236,756.16/x
  3. Step 3: Cross multiply
    418,011.99x = 576,892.13 × 236,756.16
  4. Step 4: Simplify right side
    418,011.99x = 136,582,765,433.02
  5. Step 5: Solve for x
    x = 136,582,765,433.02/418,011.99
  6. Step 6: Final answer
    x = 326,743.65

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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.