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Finding the Fourth Proportional to 670,645.46, 925,477.88 and 368,839.46

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Solution

The fourth proportional to 670,645.46, 925,477.88 and 368,839.46 is: 508,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,645.46 : 925,477.88 = 368,839.46 : x
  2. Step 2: Convert to fraction form
    670,645.46/925,477.88 = 368,839.46/x
  3. Step 3: Cross multiply
    670,645.46x = 925,477.88 × 368,839.46
  4. Step 4: Simplify right side
    670,645.46x = 341,352,755,029.56
  5. Step 5: Solve for x
    x = 341,352,755,029.56/670,645.46
  6. Step 6: Final answer
    x = 508,991.38

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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.