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Finding the Fourth Proportional to 303,886.10, 455,829.15 and 268,894.10

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Solution

The fourth proportional to 303,886.10, 455,829.15 and 268,894.10 is: 403,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,886.10 : 455,829.15 = 268,894.10 : x
  2. Step 2: Convert to fraction form
    303,886.10/455,829.15 = 268,894.10/x
  3. Step 3: Cross multiply
    303,886.10x = 455,829.15 × 268,894.10
  4. Step 4: Simplify right side
    303,886.10x = 122,569,769,043.02
  5. Step 5: Solve for x
    x = 122,569,769,043.02/303,886.10
  6. Step 6: Final answer
    x = 403,341.15

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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.