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Finding the Fourth Proportional to 666,032.64, 919,209.22 and 436,782.84

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Solution

The fourth proportional to 666,032.64, 919,209.22 and 436,782.84 is: 602,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,032.64 : 919,209.22 = 436,782.84 : x
  2. Step 2: Convert to fraction form
    666,032.64/919,209.22 = 436,782.84/x
  3. Step 3: Cross multiply
    666,032.64x = 919,209.22 × 436,782.84
  4. Step 4: Simplify right side
    666,032.64x = 401,494,813,665.79
  5. Step 5: Solve for x
    x = 401,494,813,665.79/666,032.64
  6. Step 6: Final answer
    x = 602,815.52

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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.