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Finding the Fourth Proportional to 930,456, 1,283,416.92 and 671,902.38

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Solution

The fourth proportional to 930,456, 1,283,416.92 and 671,902.38 is: 926,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,456 : 1,283,416.92 = 671,902.38 : x
  2. Step 2: Convert to fraction form
    930,456/1,283,416.92 = 671,902.38/x
  3. Step 3: Cross multiply
    930,456x = 1,283,416.92 × 671,902.38
  4. Step 4: Simplify right side
    930,456x = 862,330,883,080.27
  5. Step 5: Solve for x
    x = 862,330,883,080.27/930,456
  6. Step 6: Final answer
    x = 926,783.09

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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.