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Finding the Fourth Proportional to 418,313.79, 577,226.07 and 236,986.89

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Solution

The fourth proportional to 418,313.79, 577,226.07 and 236,986.89 is: 327,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,313.79 : 577,226.07 = 236,986.89 : x
  2. Step 2: Convert to fraction form
    418,313.79/577,226.07 = 236,986.89/x
  3. Step 3: Cross multiply
    418,313.79x = 577,226.07 × 236,986.89
  4. Step 4: Simplify right side
    418,313.79x = 136,795,011,156.22
  5. Step 5: Solve for x
    x = 136,795,011,156.22/418,313.79
  6. Step 6: Final answer
    x = 327,015.30

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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.