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Finding the Fourth Proportional to 482,636.72, 666,056.50 and 291,613.24

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Solution

The fourth proportional to 482,636.72, 666,056.50 and 291,613.24 is: 402,437.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,636.72 : 666,056.50 = 291,613.24 : x
  2. Step 2: Convert to fraction form
    482,636.72/666,056.50 = 291,613.24/x
  3. Step 3: Cross multiply
    482,636.72x = 666,056.50 × 291,613.24
  4. Step 4: Simplify right side
    482,636.72x = 194,230,893,988.06
  5. Step 5: Solve for x
    x = 194,230,893,988.06/482,636.72
  6. Step 6: Final answer
    x = 402,437.04

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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.