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Finding the Fourth Proportional to 298,784.79, 447,386.22 and 246,428.01

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Solution

The fourth proportional to 298,784.79, 447,386.22 and 246,428.01 is: 368,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,784.79 : 447,386.22 = 246,428.01 : x
  2. Step 2: Convert to fraction form
    298,784.79/447,386.22 = 246,428.01/x
  3. Step 3: Cross multiply
    298,784.79x = 447,386.22 × 246,428.01
  4. Step 4: Simplify right side
    298,784.79x = 110,248,495,896.02
  5. Step 5: Solve for x
    x = 110,248,495,896.02/298,784.79
  6. Step 6: Final answer
    x = 368,989.65

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Why These Related Problems?

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