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Finding the Fourth Proportional to 313,274.77, 432,274.85 and 186,001.09

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Solution

The fourth proportional to 313,274.77, 432,274.85 and 186,001.09 is: 256,655.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,274.77 : 432,274.85 = 186,001.09 : x
  2. Step 2: Convert to fraction form
    313,274.77/432,274.85 = 186,001.09/x
  3. Step 3: Cross multiply
    313,274.77x = 432,274.85 × 186,001.09
  4. Step 4: Simplify right side
    313,274.77x = 80,403,593,279.59
  5. Step 5: Solve for x
    x = 80,403,593,279.59/313,274.77
  6. Step 6: Final answer
    x = 256,655.18

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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.