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Finding the Fourth Proportional to 674,706, 930,491.63 and 559,802.73

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Solution

The fourth proportional to 674,706, 930,491.63 and 559,802.73 is: 772,027.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,706 : 930,491.63 = 559,802.73 : x
  2. Step 2: Convert to fraction form
    674,706/930,491.63 = 559,802.73/x
  3. Step 3: Cross multiply
    674,706x = 930,491.63 × 559,802.73
  4. Step 4: Simplify right side
    674,706x = 520,891,751,917.14
  5. Step 5: Solve for x
    x = 520,891,751,917.14/674,706
  6. Step 6: Final answer
    x = 772,027.75

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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.