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Finding the Fourth Proportional to 502,173.54, 693,008.60 and 272,730.78

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Solution

The fourth proportional to 502,173.54, 693,008.60 and 272,730.78 is: 376,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,173.54 : 693,008.60 = 272,730.78 : x
  2. Step 2: Convert to fraction form
    502,173.54/693,008.60 = 272,730.78/x
  3. Step 3: Cross multiply
    502,173.54x = 693,008.60 × 272,730.78
  4. Step 4: Simplify right side
    502,173.54x = 189,004,774,661.05
  5. Step 5: Solve for x
    x = 189,004,774,661.05/502,173.54
  6. Step 6: Final answer
    x = 376,373.42

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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.