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Finding the Fourth Proportional to 525,738.15, 725,042.34 and 344,383.92

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Solution

The fourth proportional to 525,738.15, 725,042.34 and 344,383.92 is: 474,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,738.15 : 725,042.34 = 344,383.92 : x
  2. Step 2: Convert to fraction form
    525,738.15/725,042.34 = 344,383.92/x
  3. Step 3: Cross multiply
    525,738.15x = 725,042.34 × 344,383.92
  4. Step 4: Simplify right side
    525,738.15x = 249,692,923,215.17
  5. Step 5: Solve for x
    x = 249,692,923,215.17/525,738.15
  6. Step 6: Final answer
    x = 474,937.81

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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.