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Finding the Fourth Proportional to 529,873.48, 731,211.06 and 300,472.84

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Solution

The fourth proportional to 529,873.48, 731,211.06 and 300,472.84 is: 414,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,873.48 : 731,211.06 = 300,472.84 : x
  2. Step 2: Convert to fraction form
    529,873.48/731,211.06 = 300,472.84/x
  3. Step 3: Cross multiply
    529,873.48x = 731,211.06 × 300,472.84
  4. Step 4: Simplify right side
    529,873.48x = 219,709,063,837.61
  5. Step 5: Solve for x
    x = 219,709,063,837.61/529,873.48
  6. Step 6: Final answer
    x = 414,644.39

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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.