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Finding the Fourth Proportional to 517,718.49, 714,671.96 and 348,051.03

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Solution

The fourth proportional to 517,718.49, 714,671.96 and 348,051.03 is: 480,458.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,718.49 : 714,671.96 = 348,051.03 : x
  2. Step 2: Convert to fraction form
    517,718.49/714,671.96 = 348,051.03/x
  3. Step 3: Cross multiply
    517,718.49x = 714,671.96 × 348,051.03
  4. Step 4: Simplify right side
    517,718.49x = 248,742,309,327.63
  5. Step 5: Solve for x
    x = 248,742,309,327.63/517,718.49
  6. Step 6: Final answer
    x = 480,458.62

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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.