Home / 689,596.26-951,421.32-417,577.20

Finding the Fourth Proportional to 689,596.26, 951,421.32 and 417,577.20

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Solution

The fourth proportional to 689,596.26, 951,421.32 and 417,577.20 is: 576,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,596.26 : 951,421.32 = 417,577.20 : x
  2. Step 2: Convert to fraction form
    689,596.26/951,421.32 = 417,577.20/x
  3. Step 3: Cross multiply
    689,596.26x = 951,421.32 × 417,577.20
  4. Step 4: Simplify right side
    689,596.26x = 397,291,850,825.90
  5. Step 5: Solve for x
    x = 397,291,850,825.90/689,596.26
  6. Step 6: Final answer
    x = 576,122.40

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.