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Finding the Fourth Proportional to 602,295.95, 831,154.03 and 330,361.40

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Solution

The fourth proportional to 602,295.95, 831,154.03 and 330,361.40 is: 455,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,295.95 : 831,154.03 = 330,361.40 : x
  2. Step 2: Convert to fraction form
    602,295.95/831,154.03 = 330,361.40/x
  3. Step 3: Cross multiply
    602,295.95x = 831,154.03 × 330,361.40
  4. Step 4: Simplify right side
    602,295.95x = 274,581,210,218.42
  5. Step 5: Solve for x
    x = 274,581,210,218.42/602,295.95
  6. Step 6: Final answer
    x = 455,890.84

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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.