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Finding the Fourth Proportional to 525,687.48, 725,770.08 and 342,100.92

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Solution

The fourth proportional to 525,687.48, 725,770.08 and 342,100.92 is: 472,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,687.48 : 725,770.08 = 342,100.92 : x
  2. Step 2: Convert to fraction form
    525,687.48/725,770.08 = 342,100.92/x
  3. Step 3: Cross multiply
    525,687.48x = 725,770.08 × 342,100.92
  4. Step 4: Simplify right side
    525,687.48x = 248,286,612,076.47
  5. Step 5: Solve for x
    x = 248,286,612,076.47/525,687.48
  6. Step 6: Final answer
    x = 472,308.40

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1.5x scale

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.