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Finding the Fourth Proportional to 575,838.40, 863,757.60 and 347,515.60

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Solution

The fourth proportional to 575,838.40, 863,757.60 and 347,515.60 is: 521,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,838.40 : 863,757.60 = 347,515.60 : x
  2. Step 2: Convert to fraction form
    575,838.40/863,757.60 = 347,515.60/x
  3. Step 3: Cross multiply
    575,838.40x = 863,757.60 × 347,515.60
  4. Step 4: Simplify right side
    575,838.40x = 300,169,240,618.56
  5. Step 5: Solve for x
    x = 300,169,240,618.56/575,838.40
  6. Step 6: Final answer
    x = 521,273.40

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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.