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Finding the Fourth Proportional to 670,922, 925,872.36 and 369,109.52

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Solution

The fourth proportional to 670,922, 925,872.36 and 369,109.52 is: 509,371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,922 : 925,872.36 = 369,109.52 : x
  2. Step 2: Convert to fraction form
    670,922/925,872.36 = 369,109.52/x
  3. Step 3: Cross multiply
    670,922x = 925,872.36 × 369,109.52
  4. Step 4: Simplify right side
    670,922x = 341,748,302,380.87
  5. Step 5: Solve for x
    x = 341,748,302,380.87/670,922
  6. Step 6: Final answer
    x = 509,371.14

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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.