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Finding the Fourth Proportional to 661,646.34, 992,070 and 296,841.33

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Solution

The fourth proportional to 661,646.34, 992,070 and 296,841.33 is: 445,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,646.34 : 992,070 = 296,841.33 : x
  2. Step 2: Convert to fraction form
    661,646.34/992,070 = 296,841.33/x
  3. Step 3: Cross multiply
    661,646.34x = 992,070 × 296,841.33
  4. Step 4: Simplify right side
    661,646.34x = 294,487,378,253.10
  5. Step 5: Solve for x
    x = 294,487,378,253.10/661,646.34
  6. Step 6: Final answer
    x = 445,082.76

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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.