Home / 683,407.80-1,025,111.70-615,756.60

Finding the Fourth Proportional to 683,407.80, 1,025,111.70 and 615,756.60

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Solution

The fourth proportional to 683,407.80, 1,025,111.70 and 615,756.60 is: 923,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,407.80 : 1,025,111.70 = 615,756.60 : x
  2. Step 2: Convert to fraction form
    683,407.80/1,025,111.70 = 615,756.60/x
  3. Step 3: Cross multiply
    683,407.80x = 1,025,111.70 × 615,756.60
  4. Step 4: Simplify right side
    683,407.80x = 631,219,295,012.22
  5. Step 5: Solve for x
    x = 631,219,295,012.22/683,407.80
  6. Step 6: Final answer
    x = 923,634.90

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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.