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Finding the Fourth Proportional to 674,202.33, 930,586.86 and 387,814.68

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Solution

The fourth proportional to 674,202.33, 930,586.86 and 387,814.68 is: 535,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,202.33 : 930,586.86 = 387,814.68 : x
  2. Step 2: Convert to fraction form
    674,202.33/930,586.86 = 387,814.68/x
  3. Step 3: Cross multiply
    674,202.33x = 930,586.86 × 387,814.68
  4. Step 4: Simplify right side
    674,202.33x = 360,895,245,323.11
  5. Step 5: Solve for x
    x = 360,895,245,323.11/674,202.33
  6. Step 6: Final answer
    x = 535,292.20

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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.