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Finding the Fourth Proportional to 668,714.77, 922,826.28 and 382,241.01

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Solution

The fourth proportional to 668,714.77, 922,826.28 and 382,241.01 is: 527,492.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,714.77 : 922,826.28 = 382,241.01 : x
  2. Step 2: Convert to fraction form
    668,714.77/922,826.28 = 382,241.01/x
  3. Step 3: Cross multiply
    668,714.77x = 922,826.28 × 382,241.01
  4. Step 4: Simplify right side
    668,714.77x = 352,742,049,321.74
  5. Step 5: Solve for x
    x = 352,742,049,321.74/668,714.77
  6. Step 6: Final answer
    x = 527,492.54

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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.