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Finding the Fourth Proportional to 634,122.54, 875,079.05 and 347,644.58

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Solution

The fourth proportional to 634,122.54, 875,079.05 and 347,644.58 is: 479,744.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,122.54 : 875,079.05 = 347,644.58 : x
  2. Step 2: Convert to fraction form
    634,122.54/875,079.05 = 347,644.58/x
  3. Step 3: Cross multiply
    634,122.54x = 875,079.05 × 347,644.58
  4. Step 4: Simplify right side
    634,122.54x = 304,216,482,690.43
  5. Step 5: Solve for x
    x = 304,216,482,690.43/634,122.54
  6. Step 6: Final answer
    x = 479,744.00

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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.