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Finding the Fourth Proportional to 622,846.60, 934,269.90 and 611,036.80

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Solution

The fourth proportional to 622,846.60, 934,269.90 and 611,036.80 is: 916,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,846.60 : 934,269.90 = 611,036.80 : x
  2. Step 2: Convert to fraction form
    622,846.60/934,269.90 = 611,036.80/x
  3. Step 3: Cross multiply
    622,846.60x = 934,269.90 × 611,036.80
  4. Step 4: Simplify right side
    622,846.60x = 570,873,290,032.32
  5. Step 5: Solve for x
    x = 570,873,290,032.32/622,846.60
  6. Step 6: Final answer
    x = 916,555.20

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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.