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Finding the Fourth Proportional to 661,665.78, 992,071.98 and 282,833.64

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Solution

The fourth proportional to 661,665.78, 992,071.98 and 282,833.64 is: 424,068.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,665.78 : 992,071.98 = 282,833.64 : x
  2. Step 2: Convert to fraction form
    661,665.78/992,071.98 = 282,833.64/x
  3. Step 3: Cross multiply
    661,665.78x = 992,071.98 × 282,833.64
  4. Step 4: Simplify right side
    661,665.78x = 280,591,329,245.41
  5. Step 5: Solve for x
    x = 280,591,329,245.41/661,665.78
  6. Step 6: Final answer
    x = 424,068.07

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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.