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Finding the Fourth Proportional to 468,270.77, 646,213.61 and 253,410.84

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Solution

The fourth proportional to 468,270.77, 646,213.61 and 253,410.84 is: 349,706.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,270.77 : 646,213.61 = 253,410.84 : x
  2. Step 2: Convert to fraction form
    468,270.77/646,213.61 = 253,410.84/x
  3. Step 3: Cross multiply
    468,270.77x = 646,213.61 × 253,410.84
  4. Step 4: Simplify right side
    468,270.77x = 163,757,534,363.06
  5. Step 5: Solve for x
    x = 163,757,534,363.06/468,270.77
  6. Step 6: Final answer
    x = 349,706.94

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Double scale
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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.