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Finding the Fourth Proportional to 590,767.49, 814,930.86 and 387,146.85

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Solution

The fourth proportional to 590,767.49, 814,930.86 and 387,146.85 is: 534,047.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,767.49 : 814,930.86 = 387,146.85 : x
  2. Step 2: Convert to fraction form
    590,767.49/814,930.86 = 387,146.85/x
  3. Step 3: Cross multiply
    590,767.49x = 814,930.86 × 387,146.85
  4. Step 4: Simplify right side
    590,767.49x = 315,497,915,416.79
  5. Step 5: Solve for x
    x = 315,497,915,416.79/590,767.49
  6. Step 6: Final answer
    x = 534,047.53

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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.