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Finding the Fourth Proportional to 346,502.80, 518,602.20 and 251,462.80

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Solution

The fourth proportional to 346,502.80, 518,602.20 and 251,462.80 is: 376,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,502.80 : 518,602.20 = 251,462.80 : x
  2. Step 2: Convert to fraction form
    346,502.80/518,602.20 = 251,462.80/x
  3. Step 3: Cross multiply
    346,502.80x = 518,602.20 × 251,462.80
  4. Step 4: Simplify right side
    346,502.80x = 130,409,161,298.16
  5. Step 5: Solve for x
    x = 130,409,161,298.16/346,502.80
  6. Step 6: Final answer
    x = 376,358.17

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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.