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Finding the Fourth Proportional to 418,157.64, 577,068.84 and 246,087.72

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Solution

The fourth proportional to 418,157.64, 577,068.84 and 246,087.72 is: 339,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,157.64 : 577,068.84 = 246,087.72 : x
  2. Step 2: Convert to fraction form
    418,157.64/577,068.84 = 246,087.72/x
  3. Step 3: Cross multiply
    418,157.64x = 577,068.84 × 246,087.72
  4. Step 4: Simplify right side
    418,157.64x = 142,009,555,118.65
  5. Step 5: Solve for x
    x = 142,009,555,118.65/418,157.64
  6. Step 6: Final answer
    x = 339,607.70

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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.