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Finding the Fourth Proportional to 704,100, 971,719.44 and 386,209.44

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Solution

The fourth proportional to 704,100, 971,719.44 and 386,209.44 is: 533,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,100 : 971,719.44 = 386,209.44 : x
  2. Step 2: Convert to fraction form
    704,100/971,719.44 = 386,209.44/x
  3. Step 3: Cross multiply
    704,100x = 971,719.44 × 386,209.44
  4. Step 4: Simplify right side
    704,100x = 375,287,220,759.51
  5. Step 5: Solve for x
    x = 375,287,220,759.51/704,100
  6. Step 6: Final answer
    x = 533,002.73

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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.