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Finding the Fourth Proportional to 479,172.31, 718,199.56 and 360,461.95

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Solution

The fourth proportional to 479,172.31, 718,199.56 and 360,461.95 is: 540,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,172.31 : 718,199.56 = 360,461.95 : x
  2. Step 2: Convert to fraction form
    479,172.31/718,199.56 = 360,461.95/x
  3. Step 3: Cross multiply
    479,172.31x = 718,199.56 × 360,461.95
  4. Step 4: Simplify right side
    479,172.31x = 258,883,613,886.74
  5. Step 5: Solve for x
    x = 258,883,613,886.74/479,172.31
  6. Step 6: Final answer
    x = 540,272.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.