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Finding the Fourth Proportional to 602,637.76, 831,568.44 and 357,583.60

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Solution

The fourth proportional to 602,637.76, 831,568.44 and 357,583.60 is: 493,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,637.76 : 831,568.44 = 357,583.60 : x
  2. Step 2: Convert to fraction form
    602,637.76/831,568.44 = 357,583.60/x
  3. Step 3: Cross multiply
    602,637.76x = 831,568.44 × 357,583.60
  4. Step 4: Simplify right side
    602,637.76x = 297,355,236,421.58
  5. Step 5: Solve for x
    x = 297,355,236,421.58/602,637.76
  6. Step 6: Final answer
    x = 493,422.84

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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.