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Finding the Fourth Proportional to 560,711.40, 773,781.53 and 306,062.58

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Solution

The fourth proportional to 560,711.40, 773,781.53 and 306,062.58 is: 422,366.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,711.40 : 773,781.53 = 306,062.58 : x
  2. Step 2: Convert to fraction form
    560,711.40/773,781.53 = 306,062.58/x
  3. Step 3: Cross multiply
    560,711.40x = 773,781.53 × 306,062.58
  4. Step 4: Simplify right side
    560,711.40x = 236,825,572,799.52
  5. Step 5: Solve for x
    x = 236,825,572,799.52/560,711.40
  6. Step 6: Final answer
    x = 422,366.26

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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.