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Finding the Fourth Proportional to 517,724.76, 714,680.60 and 348,057.28

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Solution

The fourth proportional to 517,724.76, 714,680.60 and 348,057.28 is: 480,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,724.76 : 714,680.60 = 348,057.28 : x
  2. Step 2: Convert to fraction form
    517,724.76/714,680.60 = 348,057.28/x
  3. Step 3: Cross multiply
    517,724.76x = 714,680.60 × 348,057.28
  4. Step 4: Simplify right side
    517,724.76x = 248,749,785,704.77
  5. Step 5: Solve for x
    x = 248,749,785,704.77/517,724.76
  6. Step 6: Final answer
    x = 480,467.24

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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.