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Finding the Fourth Proportional to 1,068,662.51, 1,474,743.18 and 578,623.62

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Solution

The fourth proportional to 1,068,662.51, 1,474,743.18 and 578,623.62 is: 798,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,662.51 : 1,474,743.18 = 578,623.62 : x
  2. Step 2: Convert to fraction form
    1,068,662.51/1,474,743.18 = 578,623.62/x
  3. Step 3: Cross multiply
    1,068,662.51x = 1,474,743.18 × 578,623.62
  4. Step 4: Simplify right side
    1,068,662.51x = 853,321,237,381.91
  5. Step 5: Solve for x
    x = 853,321,237,381.91/1,068,662.51
  6. Step 6: Final answer
    x = 798,494.60

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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.