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Finding the Fourth Proportional to 716,318.22, 988,591.56 and 410,435.16

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Solution

The fourth proportional to 716,318.22, 988,591.56 and 410,435.16 is: 566,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,318.22 : 988,591.56 = 410,435.16 : x
  2. Step 2: Convert to fraction form
    716,318.22/988,591.56 = 410,435.16/x
  3. Step 3: Cross multiply
    716,318.22x = 988,591.56 × 410,435.16
  4. Step 4: Simplify right side
    716,318.22x = 405,752,735,103.25
  5. Step 5: Solve for x
    x = 405,752,735,103.25/716,318.22
  6. Step 6: Final answer
    x = 566,442.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.