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Finding the Fourth Proportional to 670,562.51, 925,348.10 and 380,193.61

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Solution

The fourth proportional to 670,562.51, 925,348.10 and 380,193.61 is: 524,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,562.51 : 925,348.10 = 380,193.61 : x
  2. Step 2: Convert to fraction form
    670,562.51/925,348.10 = 380,193.61/x
  3. Step 3: Cross multiply
    670,562.51x = 925,348.10 × 380,193.61
  4. Step 4: Simplify right side
    670,562.51x = 351,811,434,645.64
  5. Step 5: Solve for x
    x = 351,811,434,645.64/670,562.51
  6. Step 6: Final answer
    x = 524,651.21

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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.