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Finding the Fourth Proportional to 547,089.89, 755,383.95 and 353,612.07

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Solution

The fourth proportional to 547,089.89, 755,383.95 and 353,612.07 is: 488,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,089.89 : 755,383.95 = 353,612.07 : x
  2. Step 2: Convert to fraction form
    547,089.89/755,383.95 = 353,612.07/x
  3. Step 3: Cross multiply
    547,089.89x = 755,383.95 × 353,612.07
  4. Step 4: Simplify right side
    547,089.89x = 267,112,882,204.28
  5. Step 5: Solve for x
    x = 267,112,882,204.28/547,089.89
  6. Step 6: Final answer
    x = 488,243.14

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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.