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Finding the Fourth Proportional to 303,592.70, 455,389.05 and 214,946.30

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Solution

The fourth proportional to 303,592.70, 455,389.05 and 214,946.30 is: 322,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,592.70 : 455,389.05 = 214,946.30 : x
  2. Step 2: Convert to fraction form
    303,592.70/455,389.05 = 214,946.30/x
  3. Step 3: Cross multiply
    303,592.70x = 455,389.05 × 214,946.30
  4. Step 4: Simplify right side
    303,592.70x = 97,884,191,358.02
  5. Step 5: Solve for x
    x = 97,884,191,358.02/303,592.70
  6. Step 6: Final answer
    x = 322,419.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.