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Finding the Fourth Proportional to 659,661, 910,332.46 and 373,175

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Solution

The fourth proportional to 659,661, 910,332.46 and 373,175 is: 514,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,661 : 910,332.46 = 373,175 : x
  2. Step 2: Convert to fraction form
    659,661/910,332.46 = 373,175/x
  3. Step 3: Cross multiply
    659,661x = 910,332.46 × 373,175
  4. Step 4: Simplify right side
    659,661x = 339,713,315,760.50
  5. Step 5: Solve for x
    x = 339,713,315,760.50/659,661
  6. Step 6: Final answer
    x = 514,981.66

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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.