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Finding the Fourth Proportional to 488,340.40, 732,510.60 and 264,391.60

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Solution

The fourth proportional to 488,340.40, 732,510.60 and 264,391.60 is: 396,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,340.40 : 732,510.60 = 264,391.60 : x
  2. Step 2: Convert to fraction form
    488,340.40/732,510.60 = 264,391.60/x
  3. Step 3: Cross multiply
    488,340.40x = 732,510.60 × 264,391.60
  4. Step 4: Simplify right side
    488,340.40x = 193,669,649,550.96
  5. Step 5: Solve for x
    x = 193,669,649,550.96/488,340.40
  6. Step 6: Final answer
    x = 396,587.40

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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.