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Finding the Fourth Proportional to 518,998.06, 716,217.42 and 292,643.56

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Solution

The fourth proportional to 518,998.06, 716,217.42 and 292,643.56 is: 403,848.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,998.06 : 716,217.42 = 292,643.56 : x
  2. Step 2: Convert to fraction form
    518,998.06/716,217.42 = 292,643.56/x
  3. Step 3: Cross multiply
    518,998.06x = 716,217.42 × 292,643.56
  4. Step 4: Simplify right side
    518,998.06x = 209,596,415,522.82
  5. Step 5: Solve for x
    x = 209,596,415,522.82/518,998.06
  6. Step 6: Final answer
    x = 403,848.17

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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.