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Finding the Fourth Proportional to 409,909.65, 610,789.59 and 365,192.79

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Solution

The fourth proportional to 409,909.65, 610,789.59 and 365,192.79 is: 544,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,909.65 : 610,789.59 = 365,192.79 : x
  2. Step 2: Convert to fraction form
    409,909.65/610,789.59 = 365,192.79/x
  3. Step 3: Cross multiply
    409,909.65x = 610,789.59 × 365,192.79
  4. Step 4: Simplify right side
    409,909.65x = 223,055,954,475.06
  5. Step 5: Solve for x
    x = 223,055,954,475.06/409,909.65
  6. Step 6: Final answer
    x = 544,158.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.