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Finding the Fourth Proportional to 504,646.20, 696,420.18 and 275,204.79

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Solution

The fourth proportional to 504,646.20, 696,420.18 and 275,204.79 is: 379,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,646.20 : 696,420.18 = 275,204.79 : x
  2. Step 2: Convert to fraction form
    504,646.20/696,420.18 = 275,204.79/x
  3. Step 3: Cross multiply
    504,646.20x = 696,420.18 × 275,204.79
  4. Step 4: Simplify right side
    504,646.20x = 191,658,169,388.66
  5. Step 5: Solve for x
    x = 191,658,169,388.66/504,646.20
  6. Step 6: Final answer
    x = 379,787.20

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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.