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Finding the Fourth Proportional to 659,872.50, 910,626.48 and 358,066.50

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Solution

The fourth proportional to 659,872.50, 910,626.48 and 358,066.50 is: 494,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,872.50 : 910,626.48 = 358,066.50 : x
  2. Step 2: Convert to fraction form
    659,872.50/910,626.48 = 358,066.50/x
  3. Step 3: Cross multiply
    659,872.50x = 910,626.48 × 358,066.50
  4. Step 4: Simplify right side
    659,872.50x = 326,064,836,500.92
  5. Step 5: Solve for x
    x = 326,064,836,500.92/659,872.50
  6. Step 6: Final answer
    x = 494,133.09

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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.