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Finding the Fourth Proportional to 788,662.80, 1,182,994.20 and 655,693.20

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Solution

The fourth proportional to 788,662.80, 1,182,994.20 and 655,693.20 is: 983,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,662.80 : 1,182,994.20 = 655,693.20 : x
  2. Step 2: Convert to fraction form
    788,662.80/1,182,994.20 = 655,693.20/x
  3. Step 3: Cross multiply
    788,662.80x = 1,182,994.20 × 655,693.20
  4. Step 4: Simplify right side
    788,662.80x = 775,681,252,579.44
  5. Step 5: Solve for x
    x = 775,681,252,579.44/788,662.80
  6. Step 6: Final answer
    x = 983,539.80

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Double scale
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Similar ratio
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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.