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Finding the Fourth Proportional to 476,712.65, 714,722.18 and 223,862.81

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Solution

The fourth proportional to 476,712.65, 714,722.18 and 223,862.81 is: 335,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,712.65 : 714,722.18 = 223,862.81 : x
  2. Step 2: Convert to fraction form
    476,712.65/714,722.18 = 223,862.81/x
  3. Step 3: Cross multiply
    476,712.65x = 714,722.18 × 223,862.81
  4. Step 4: Simplify right side
    476,712.65x = 159,999,714,464.81
  5. Step 5: Solve for x
    x = 159,999,714,464.81/476,712.65
  6. Step 6: Final answer
    x = 335,631.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.