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Finding the Fourth Proportional to 622,891.90, 935,374.65 and 342,610.30

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Solution

The fourth proportional to 622,891.90, 935,374.65 and 342,610.30 is: 514,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,891.90 : 935,374.65 = 342,610.30 : x
  2. Step 2: Convert to fraction form
    622,891.90/935,374.65 = 342,610.30/x
  3. Step 3: Cross multiply
    622,891.90x = 935,374.65 × 342,610.30
  4. Step 4: Simplify right side
    622,891.90x = 320,468,989,448.90
  5. Step 5: Solve for x
    x = 320,468,989,448.90/622,891.90
  6. Step 6: Final answer
    x = 514,485.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.