Home / 827,125.40-1,240,688.10-561,704.60

Finding the Fourth Proportional to 827,125.40, 1,240,688.10 and 561,704.60

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Solution

The fourth proportional to 827,125.40, 1,240,688.10 and 561,704.60 is: 842,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,125.40 : 1,240,688.10 = 561,704.60 : x
  2. Step 2: Convert to fraction form
    827,125.40/1,240,688.10 = 561,704.60/x
  3. Step 3: Cross multiply
    827,125.40x = 1,240,688.10 × 561,704.60
  4. Step 4: Simplify right side
    827,125.40x = 696,900,212,935.26
  5. Step 5: Solve for x
    x = 696,900,212,935.26/827,125.40
  6. Step 6: Final answer
    x = 842,556.90

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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.