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Finding the Fourth Proportional to 602,409.40, 903,614.10 and 331,804.60

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Solution

The fourth proportional to 602,409.40, 903,614.10 and 331,804.60 is: 497,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,409.40 : 903,614.10 = 331,804.60 : x
  2. Step 2: Convert to fraction form
    602,409.40/903,614.10 = 331,804.60/x
  3. Step 3: Cross multiply
    602,409.40x = 903,614.10 × 331,804.60
  4. Step 4: Simplify right side
    602,409.40x = 299,823,315,004.86
  5. Step 5: Solve for x
    x = 299,823,315,004.86/602,409.40
  6. Step 6: Final answer
    x = 497,706.90

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Similar ratio
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1.5x scale

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.