Home / 1,145,147.10-1,717,720.65-397,193.10

Finding the Fourth Proportional to 1,145,147.10, 1,717,720.65 and 397,193.10

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Solution

The fourth proportional to 1,145,147.10, 1,717,720.65 and 397,193.10 is: 595,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,147.10 : 1,717,720.65 = 397,193.10 : x
  2. Step 2: Convert to fraction form
    1,145,147.10/1,717,720.65 = 397,193.10/x
  3. Step 3: Cross multiply
    1,145,147.10x = 1,717,720.65 × 397,193.10
  4. Step 4: Simplify right side
    1,145,147.10x = 682,266,789,907.52
  5. Step 5: Solve for x
    x = 682,266,789,907.52/1,145,147.10
  6. Step 6: Final answer
    x = 595,789.65

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Half scale
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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.