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Finding the Fourth Proportional to 610,064.70, 841,939.67 and 338,217.86

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Solution

The fourth proportional to 610,064.70, 841,939.67 and 338,217.86 is: 466,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,064.70 : 841,939.67 = 338,217.86 : x
  2. Step 2: Convert to fraction form
    610,064.70/841,939.67 = 338,217.86/x
  3. Step 3: Cross multiply
    610,064.70x = 841,939.67 × 338,217.86
  4. Step 4: Simplify right side
    610,064.70x = 284,759,027,535.72
  5. Step 5: Solve for x
    x = 284,759,027,535.72/610,064.70
  6. Step 6: Final answer
    x = 466,768.57

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1.5x scale

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.