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Finding the Fourth Proportional to 605,274.80, 835,636.92 and 538,012.40

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Solution

The fourth proportional to 605,274.80, 835,636.92 and 538,012.40 is: 742,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,274.80 : 835,636.92 = 538,012.40 : x
  2. Step 2: Convert to fraction form
    605,274.80/835,636.92 = 538,012.40/x
  3. Step 3: Cross multiply
    605,274.80x = 835,636.92 × 538,012.40
  4. Step 4: Simplify right side
    605,274.80x = 449,583,024,857.81
  5. Step 5: Solve for x
    x = 449,583,024,857.81/605,274.80
  6. Step 6: Final answer
    x = 742,775.06

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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.