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Finding the Fourth Proportional to 560,448.90, 773,397.20 and 331,079.84

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Solution

The fourth proportional to 560,448.90, 773,397.20 and 331,079.84 is: 456,877.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,448.90 : 773,397.20 = 331,079.84 : x
  2. Step 2: Convert to fraction form
    560,448.90/773,397.20 = 331,079.84/x
  3. Step 3: Cross multiply
    560,448.90x = 773,397.20 × 331,079.84
  4. Step 4: Simplify right side
    560,448.90x = 256,056,219,577.05
  5. Step 5: Solve for x
    x = 256,056,219,577.05/560,448.90
  6. Step 6: Final answer
    x = 456,877.01

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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.