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Finding the Fourth Proportional to 309,444.40, 466,111.48 and 281,543.68

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Solution

The fourth proportional to 309,444.40, 466,111.48 and 281,543.68 is: 424,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,444.40 : 466,111.48 = 281,543.68 : x
  2. Step 2: Convert to fraction form
    309,444.40/466,111.48 = 281,543.68/x
  3. Step 3: Cross multiply
    309,444.40x = 466,111.48 × 281,543.68
  4. Step 4: Simplify right side
    309,444.40x = 131,230,741,369.45
  5. Step 5: Solve for x
    x = 131,230,741,369.45/309,444.40
  6. Step 6: Final answer
    x = 424,085.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.