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Finding the Fourth Proportional to 573,398.28, 791,220.42 and 340,787.88

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Solution

The fourth proportional to 573,398.28, 791,220.42 and 340,787.88 is: 470,246.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,398.28 : 791,220.42 = 340,787.88 : x
  2. Step 2: Convert to fraction form
    573,398.28/791,220.42 = 340,787.88/x
  3. Step 3: Cross multiply
    573,398.28x = 791,220.42 × 340,787.88
  4. Step 4: Simplify right side
    573,398.28x = 269,638,329,544.51
  5. Step 5: Solve for x
    x = 269,638,329,544.51/573,398.28
  6. Step 6: Final answer
    x = 470,246.14

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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.