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Finding the Third Proportional to 200,957,472.70 and 435,307,858.38

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Solution

The third proportional to 200,957,472.70 and 435,307,858.38 is: 942,950,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,957,472.70 : 435,307,858.38 = 435,307,858.38 : x
  2. Step 2: Convert to fraction form
    200,957,472.70/435,307,858.38 = 435,307,858.38/x
  3. Step 3: Cross multiply
    200,957,472.70x = 435,307,858.38 × 435,307,858.38
  4. Step 4: Simplify right side
    200,957,472.70x = 189,492,931,569,828,576
  5. Step 5: Solve for x
    x = 189,492,931,569,828,576/200,957,472.70
  6. Step 6: Final answer
    x = 942,950,411.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.