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Finding the Fourth Proportional to 373,603.40, 560,405.10 and 342,110.60

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Solution

The fourth proportional to 373,603.40, 560,405.10 and 342,110.60 is: 513,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,603.40 : 560,405.10 = 342,110.60 : x
  2. Step 2: Convert to fraction form
    373,603.40/560,405.10 = 342,110.60/x
  3. Step 3: Cross multiply
    373,603.40x = 560,405.10 × 342,110.60
  4. Step 4: Simplify right side
    373,603.40x = 191,720,525,004.06
  5. Step 5: Solve for x
    x = 191,720,525,004.06/373,603.40
  6. Step 6: Final answer
    x = 513,165.90

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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.