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Finding the Fourth Proportional to 447,603.67, 616,516.40 and 344,039.81

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Solution

The fourth proportional to 447,603.67, 616,516.40 and 344,039.81 is: 473,870.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,603.67 : 616,516.40 = 344,039.81 : x
  2. Step 2: Convert to fraction form
    447,603.67/616,516.40 = 344,039.81/x
  3. Step 3: Cross multiply
    447,603.67x = 616,516.40 × 344,039.81
  4. Step 4: Simplify right side
    447,603.67x = 212,106,185,117.88
  5. Step 5: Solve for x
    x = 212,106,185,117.88/447,603.67
  6. Step 6: Final answer
    x = 473,870.52

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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.