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Finding the Fourth Proportional to 418,770.36, 577,885.61 and 246,695.38

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Solution

The fourth proportional to 418,770.36, 577,885.61 and 246,695.38 is: 340,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,770.36 : 577,885.61 = 246,695.38 : x
  2. Step 2: Convert to fraction form
    418,770.36/577,885.61 = 246,695.38/x
  3. Step 3: Cross multiply
    418,770.36x = 577,885.61 × 246,695.38
  4. Step 4: Simplify right side
    418,770.36x = 142,561,709,327.51
  5. Step 5: Solve for x
    x = 142,561,709,327.51/418,770.36
  6. Step 6: Final answer
    x = 340,429.32

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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.