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Finding the Fourth Proportional to 602,695.26, 831,664.45 and 357,637.78

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Solution

The fourth proportional to 602,695.26, 831,664.45 and 357,637.78 is: 493,507.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,695.26 : 831,664.45 = 357,637.78 : x
  2. Step 2: Convert to fraction form
    602,695.26/831,664.45 = 357,637.78/x
  3. Step 3: Cross multiply
    602,695.26x = 831,664.45 × 357,637.78
  4. Step 4: Simplify right side
    602,695.26x = 297,434,627,602.92
  5. Step 5: Solve for x
    x = 297,434,627,602.92/602,695.26
  6. Step 6: Final answer
    x = 493,507.49

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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.