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Finding the Fourth Proportional to 676,286.79, 933,115.59 and 400,505.37

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Solution

The fourth proportional to 676,286.79, 933,115.59 and 400,505.37 is: 552,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,286.79 : 933,115.59 = 400,505.37 : x
  2. Step 2: Convert to fraction form
    676,286.79/933,115.59 = 400,505.37/x
  3. Step 3: Cross multiply
    676,286.79x = 933,115.59 × 400,505.37
  4. Step 4: Simplify right side
    676,286.79x = 373,717,804,625.72
  5. Step 5: Solve for x
    x = 373,717,804,625.72/676,286.79
  6. Step 6: Final answer
    x = 552,602.55

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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.