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Finding the Fourth Proportional to 573,786.84, 791,814.81 and 315,648.70

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Solution

The fourth proportional to 573,786.84, 791,814.81 and 315,648.70 is: 435,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,786.84 : 791,814.81 = 315,648.70 : x
  2. Step 2: Convert to fraction form
    573,786.84/791,814.81 = 315,648.70/x
  3. Step 3: Cross multiply
    573,786.84x = 791,814.81 × 315,648.70
  4. Step 4: Simplify right side
    573,786.84x = 249,935,313,437.71
  5. Step 5: Solve for x
    x = 249,935,313,437.71/573,786.84
  6. Step 6: Final answer
    x = 435,589.14

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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.