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Finding the Fourth Proportional to 788,751.60, 1,182,090.60 and 699,586.80

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Solution

The fourth proportional to 788,751.60, 1,182,090.60 and 699,586.80 is: 1,048,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,751.60 : 1,182,090.60 = 699,586.80 : x
  2. Step 2: Convert to fraction form
    788,751.60/1,182,090.60 = 699,586.80/x
  3. Step 3: Cross multiply
    788,751.60x = 1,182,090.60 × 699,586.80
  4. Step 4: Simplify right side
    788,751.60x = 826,974,980,164.08
  5. Step 5: Solve for x
    x = 826,974,980,164.08/788,751.60
  6. Step 6: Final answer
    x = 1,048,460.61

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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.