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Finding the Fourth Proportional to 676,645.67, 933,771 and 370,733.66

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Solution

The fourth proportional to 676,645.67, 933,771 and 370,733.66 is: 511,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,645.67 : 933,771 = 370,733.66 : x
  2. Step 2: Convert to fraction form
    676,645.67/933,771 = 370,733.66/x
  3. Step 3: Cross multiply
    676,645.67x = 933,771 × 370,733.66
  4. Step 4: Simplify right side
    676,645.67x = 346,180,338,097.43
  5. Step 5: Solve for x
    x = 346,180,338,097.43/676,645.67
  6. Step 6: Final answer
    x = 511,612.43

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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.