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Finding the Fourth Proportional to 475,248.42, 655,740.72 and 281,717.10

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Solution

The fourth proportional to 475,248.42, 655,740.72 and 281,717.10 is: 388,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,248.42 : 655,740.72 = 281,717.10 : x
  2. Step 2: Convert to fraction form
    475,248.42/655,740.72 = 281,717.10/x
  3. Step 3: Cross multiply
    475,248.42x = 655,740.72 × 281,717.10
  4. Step 4: Simplify right side
    475,248.42x = 184,733,373,990.31
  5. Step 5: Solve for x
    x = 184,733,373,990.31/475,248.42
  6. Step 6: Final answer
    x = 388,709.08

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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.