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Finding the Fourth Proportional to 520,858.36, 718,799.70 and 294,499

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Solution

The fourth proportional to 520,858.36, 718,799.70 and 294,499 is: 406,417.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,858.36 : 718,799.70 = 294,499 : x
  2. Step 2: Convert to fraction form
    520,858.36/718,799.70 = 294,499/x
  3. Step 3: Cross multiply
    520,858.36x = 718,799.70 × 294,499
  4. Step 4: Simplify right side
    520,858.36x = 211,685,792,850.30
  5. Step 5: Solve for x
    x = 211,685,792,850.30/520,858.36
  6. Step 6: Final answer
    x = 406,417.19

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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.