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Finding the Fourth Proportional to 603,060.23, 832,265.64 and 398,756.15

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Solution

The fourth proportional to 603,060.23, 832,265.64 and 398,756.15 is: 550,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,060.23 : 832,265.64 = 398,756.15 : x
  2. Step 2: Convert to fraction form
    603,060.23/832,265.64 = 398,756.15/x
  3. Step 3: Cross multiply
    603,060.23x = 832,265.64 × 398,756.15
  4. Step 4: Simplify right side
    603,060.23x = 331,871,038,222.36
  5. Step 5: Solve for x
    x = 331,871,038,222.36/603,060.23
  6. Step 6: Final answer
    x = 550,311.60

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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.