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Finding the Fourth Proportional to 676,352.51, 933,380.54 and 370,441.78

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Solution

The fourth proportional to 676,352.51, 933,380.54 and 370,441.78 is: 511,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,352.51 : 933,380.54 = 370,441.78 : x
  2. Step 2: Convert to fraction form
    676,352.51/933,380.54 = 370,441.78/x
  3. Step 3: Cross multiply
    676,352.51x = 933,380.54 × 370,441.78
  4. Step 4: Simplify right side
    676,352.51x = 345,763,145,858.46
  5. Step 5: Solve for x
    x = 345,763,145,858.46/676,352.51
  6. Step 6: Final answer
    x = 511,217.36

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Double scale
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Similar ratio
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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.