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Finding the Fourth Proportional to 619,131.60, 854,341.92 and 347,210.64

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Solution

The fourth proportional to 619,131.60, 854,341.92 and 347,210.64 is: 479,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,131.60 : 854,341.92 = 347,210.64 : x
  2. Step 2: Convert to fraction form
    619,131.60/854,341.92 = 347,210.64/x
  3. Step 3: Cross multiply
    619,131.60x = 854,341.92 × 347,210.64
  4. Step 4: Simplify right side
    619,131.60x = 296,636,604,822.03
  5. Step 5: Solve for x
    x = 296,636,604,822.03/619,131.60
  6. Step 6: Final answer
    x = 479,117.21

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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.