Home / 817,080.40-1,225,620.60-397,176.40

Finding the Fourth Proportional to 817,080.40, 1,225,620.60 and 397,176.40

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Solution

The fourth proportional to 817,080.40, 1,225,620.60 and 397,176.40 is: 595,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,080.40 : 1,225,620.60 = 397,176.40 : x
  2. Step 2: Convert to fraction form
    817,080.40/1,225,620.60 = 397,176.40/x
  3. Step 3: Cross multiply
    817,080.40x = 1,225,620.60 × 397,176.40
  4. Step 4: Simplify right side
    817,080.40x = 486,787,577,673.84
  5. Step 5: Solve for x
    x = 486,787,577,673.84/817,080.40
  6. Step 6: Final answer
    x = 595,764.60

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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.