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Finding the Fourth Proportional to 610,709.33, 916,126.83 and 211,349.49

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Solution

The fourth proportional to 610,709.33, 916,126.83 and 211,349.49 is: 317,045.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,709.33 : 916,126.83 = 211,349.49 : x
  2. Step 2: Convert to fraction form
    610,709.33/916,126.83 = 211,349.49/x
  3. Step 3: Cross multiply
    610,709.33x = 916,126.83 × 211,349.49
  4. Step 4: Simplify right side
    610,709.33x = 193,622,938,295.82
  5. Step 5: Solve for x
    x = 193,622,938,295.82/610,709.33
  6. Step 6: Final answer
    x = 317,045.98

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1.5x scale

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.