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Finding the Fourth Proportional to 774,499.38, 1,068,909.38 and 434,967.63

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Solution

The fourth proportional to 774,499.38, 1,068,909.38 and 434,967.63 is: 600,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,499.38 : 1,068,909.38 = 434,967.63 : x
  2. Step 2: Convert to fraction form
    774,499.38/1,068,909.38 = 434,967.63/x
  3. Step 3: Cross multiply
    774,499.38x = 1,068,909.38 × 434,967.63
  4. Step 4: Simplify right side
    774,499.38x = 464,940,979,703.37
  5. Step 5: Solve for x
    x = 464,940,979,703.37/774,499.38
  6. Step 6: Final answer
    x = 600,311.62

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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.