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Finding the Fourth Proportional to 792,765.84, 1,188,703.08 and 260,242.32

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Solution

The fourth proportional to 792,765.84, 1,188,703.08 and 260,242.32 is: 390,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,765.84 : 1,188,703.08 = 260,242.32 : x
  2. Step 2: Convert to fraction form
    792,765.84/1,188,703.08 = 260,242.32/x
  3. Step 3: Cross multiply
    792,765.84x = 1,188,703.08 × 260,242.32
  4. Step 4: Simplify right side
    792,765.84x = 309,350,847,330.35
  5. Step 5: Solve for x
    x = 309,350,847,330.35/792,765.84
  6. Step 6: Final answer
    x = 390,217.18

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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.