Home / 689,594.32-951,621.16-417,823.12

Finding the Fourth Proportional to 689,594.32, 951,621.16 and 417,823.12

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Solution

The fourth proportional to 689,594.32, 951,621.16 and 417,823.12 is: 576,584.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,594.32 : 951,621.16 = 417,823.12 : x
  2. Step 2: Convert to fraction form
    689,594.32/951,621.16 = 417,823.12/x
  3. Step 3: Cross multiply
    689,594.32x = 951,621.16 × 417,823.12
  4. Step 4: Simplify right side
    689,594.32x = 397,609,322,129.22
  5. Step 5: Solve for x
    x = 397,609,322,129.22/689,594.32
  6. Step 6: Final answer
    x = 576,584.39

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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.