Home / 746,009.40-1,119,014.10-644,532.60

Finding the Fourth Proportional to 746,009.40, 1,119,014.10 and 644,532.60

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Solution

The fourth proportional to 746,009.40, 1,119,014.10 and 644,532.60 is: 966,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,009.40 : 1,119,014.10 = 644,532.60 : x
  2. Step 2: Convert to fraction form
    746,009.40/1,119,014.10 = 644,532.60/x
  3. Step 3: Cross multiply
    746,009.40x = 1,119,014.10 × 644,532.60
  4. Step 4: Simplify right side
    746,009.40x = 721,241,067,309.66
  5. Step 5: Solve for x
    x = 721,241,067,309.66/746,009.40
  6. Step 6: Final answer
    x = 966,798.90

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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.